{"title":"Differential Cases","description":null,"products":[{"product_id":"differential-case-ford-9-inch-3-062","title":"Moser Engineering 3.062 Super Light Differential Case — Ford 9 inch Rear End","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Moser Engineering\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eMoser Engineering engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Moser Engineering lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eMoser Engineering Super Light 3.062 Differential Case\u003c\/h2\u003e\u003cp\u003eUpgrade your Ford 9-inch rear end with the Moser Engineering 3.062 Super Light Differential Case. Designed specifically for racers who need to shed unsprung weight without sacrificing strength, this case is a masterpiece of engineering. Crafted from high-quality ductile iron, it provides the structural integrity required for high-torque applications while maintaining a lightweight profile.\u003c\/p\u003e\u003ch3\u003ePerformance Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore Size:\u003c\/strong\u003e 3.062-inch precision bore\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-strength ductile iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Adjuster nuts and heavy-duty ductile iron caps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Ford 9-inch rear end assemblies\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e Optimized for competitive weight reduction\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe Moser 3.062 case is built to handle the stresses of drag racing and high-performance street use. By utilizing ductile iron, Moser ensures that the case resists cracking and deformation under heavy load, providing a stable foundation for your ring and pinion gears. The inclusion of heavy-duty caps and precision adjuster nuts makes setup straightforward and reliable. Whether you are performing a full rear-end rebuild or upgrading for increased performance, this differential case offers the perfect balance of durability and weight savings. Trust your drivetrain components to Moser Engineering and find all your necessary rear-end parts right here at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Moser Engineering products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/ford-9in-alm-carrier-case-3-250-od-bearing\" style=\"color:#0066cc;text-decoration:none;\"\u003eMoser Engineering 3250ALU Pro Case Differential — Ford 9 inch 3.250 Bore Aluminum Carrier\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/ford-9in-alm-diff-case-3-812\" style=\"color:#0066cc;text-decoration:none;\"\u003eMoser Engineering 3812ALU Aluminum Differential Case — Fits Ford 9 inch, 3.812 inch Bore\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/rotor-adapter-steel-8-bolt\" style=\"color:#0066cc;text-decoration:none;\"\u003eMoser Engineering Steel Rotor Adapter 5x4.75 to 8x7.000 — Disc Brake Conversion\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/dust-cap-univesal-1pk\" style=\"color:#0066cc;text-decoration:none;\"\u003eMoser Engineering Universal Aluminum Dust Cap — Wheel Hub Protection\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gn-c-t-hub-package-steel-hub-rotor\" style=\"color:#0066cc;text-decoration:none;\"\u003eMoser Engineering Grand National Steel Hub \u0026amp; Rotor Package — 5x5 Bolt Pattern 24-Spline\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Moser Engineering 3.062 Super Light Differential Case \\u2014 Ford 9 inch Rear End\",\"description\":\"Lighten your drivetrain with the Moser Engineering 3.062 Super Light differential case for Ford 9 inch rear ends. Shop durable parts at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Moser Engineering\"},\"mpn\":\"3062STK\",\"url\":\"https:\/\/ggcracing.com\/products\/differential-case-ford-9-inch-3-062\",\"offers\":{\"@type\":\"Offer\",\"price\":\"290.00\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/differential-case-ford-9-inch-3-062\",\"sku\":\"BJFQ_3062STK\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Moser Engineering\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Moser+Engineering\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Moser Engineering 3.062 Super Light Differential Case \\u2014 Ford 9 inch Rear End\",\"item\":\"https:\/\/ggcracing.com\/products\/differential-case-ford-9-inch-3-062\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Moser Engineering 3.062 Super Light Differential Case \\u2014 Ford 9 inch Rear End fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Moser Engineering?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Moser Engineering 3.062 Super Light Differential Case \\u2014 Ford 9 inch Rear End?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Moser Engineering","offers":[{"title":"Default Title","offer_id":40872824701012,"sku":"BJFQ_3062STK","price":290.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/MEI3062STK.jpg?v=1714400811"},{"product_id":"ford-9in-alm-carrier-case-3-250-od-bearing","title":"Moser Engineering 3250ALU Pro Case Differential — Ford 9 inch 3.250 Bore Aluminum Carrier","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Moser Engineering\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eMoser Engineering engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Moser Engineering lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eMoser Engineering 3250ALU: The Ultimate Ford 9 inch Aluminum Pro Case\u003c\/h2\u003e\u003cp\u003eWhen extreme horsepower meets the track, your drivetrain components must be uncompromisingly strong. The \u003cstrong\u003eMoser Engineering 3250ALU Pro Case Differential Carrier\u003c\/strong\u003e for the Ford 9 inch rear end is engineered for maximum durability and performance. This premium aluminum carrier, featuring a 3.250 inch bore, is designed to handle the most brutal forces, making it the go-to choice for serious drag racing, off-road, and high-performance street applications.\u003c\/p\u003e\u003ch3\u003eUnrivaled Strength with Lightweight Aluminum\u003c\/h3\u003e\u003cp\u003eThe 3250ALU Pro Case is a testament to Moser Engineering's dedication to cutting-edge design. Constructed from high-strength aluminum, it offers a significant weight reduction compared to traditional iron cases while maintaining exceptional structural integrity. The innovative through-bolt caps provide superior cap retention, preventing deflection under extreme loads. This case comes complete with adjusters and robust aluminum through-bolt caps, ensuring a precise and rock-solid setup for your Ford 9 inch.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePro Case Design:\u003c\/strong\u003e Engineered for extreme strength and reliability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Strength Aluminum:\u003c\/strong\u003e Reduces weight without sacrificing durability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3.250 inch Bore:\u003c\/strong\u003e Accommodates larger bearings for enhanced load capacity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAluminum Through-Bolt Caps:\u003c\/strong\u003e Maximizes cap retention under high stress.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Kit:\u003c\/strong\u003e Includes adjusters and caps for a seamless installation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Differential Case \/ Carrier\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore Size:\u003c\/strong\u003e 3.250 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Natural\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Ford 9 inch Rear Ends, compatible with 3.250 OD bearings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded:\u003c\/strong\u003e Adjusters, Aluminum Through-Bolt Caps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMPN:\u003c\/strong\u003e 3250ALU\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhy the Moser 3250ALU Pro Case is a Must-Have?\u003c\/h3\u003e\u003cp\u003eThe Moser 3250ALU Pro Case is an essential upgrade for any Ford 9 inch rear end subjected to high horsepower and aggressive driving. Its combination of lightweight aluminum and through-bolt cap design delivers unparalleled strength and reliability, ensuring your differential can withstand the demands of competitive racing or extreme street use. Experience the difference of a truly robust drivetrain. Explore the full range of Moser Engineering products at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Moser Engineering products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/differential-case-ford-9-inch-3-062\" style=\"color:#0066cc;text-decoration:none;\"\u003eMoser Engineering 3.062 Super Light Differential Case — Ford 9 inch Rear End\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/ford-9in-alm-diff-case-3-812\" style=\"color:#0066cc;text-decoration:none;\"\u003eMoser Engineering 3812ALU Aluminum Differential Case — Fits Ford 9 inch, 3.812 inch Bore\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/rotor-adapter-steel-8-bolt\" style=\"color:#0066cc;text-decoration:none;\"\u003eMoser Engineering Steel Rotor Adapter 5x4.75 to 8x7.000 — Disc Brake Conversion\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/dust-cap-univesal-1pk\" style=\"color:#0066cc;text-decoration:none;\"\u003eMoser Engineering Universal Aluminum Dust Cap — Wheel Hub Protection\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gn-c-t-hub-package-steel-hub-rotor\" style=\"color:#0066cc;text-decoration:none;\"\u003eMoser Engineering Grand National Steel Hub \u0026amp; Rotor Package — 5x5 Bolt Pattern 24-Spline\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Moser Engineering 3250ALU Pro Case Differential \\u2014 Ford 9 inch 3.250 Bore Aluminum Carrier\",\"description\":\"Elevate your Ford 9 inch with the Moser 3250ALU Pro Case aluminum differential carrier. Features a 3.250 bore and through-bolt caps for extreme strength. Shop performance!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Moser Engineering\"},\"mpn\":\"3250ALU\",\"url\":\"https:\/\/ggcracing.com\/products\/ford-9in-alm-carrier-case-3-250-od-bearing\",\"offers\":{\"@type\":\"Offer\",\"price\":\"715.00\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/ford-9in-alm-carrier-case-3-250-od-bearing\",\"sku\":\"BJFQ_3250ALU\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Moser Engineering\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Moser+Engineering\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Moser Engineering 3250ALU Pro Case Differential \\u2014 Ford 9 inch 3.250 Bore Aluminum Carrier\",\"item\":\"https:\/\/ggcracing.com\/products\/ford-9in-alm-carrier-case-3-250-od-bearing\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Moser Engineering 3250ALU Pro Case Differential \\u2014 Ford 9 inch 3.250 Bore Aluminu fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Moser Engineering?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Moser Engineering 3250ALU Pro Case Differential \\u2014 Ford 9 inch 3.250 Bore Aluminu?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Moser Engineering","offers":[{"title":"Default Title","offer_id":40872825520212,"sku":"BJFQ_3250ALU","price":715.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/MEI3250ALU.jpg?v=1714400820"},{"product_id":"ford-9in-alm-diff-case-3-812","title":"Moser Engineering 3812ALU Aluminum Differential Case — Fits Ford 9 inch, 3.812 inch Bore","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Moser Engineering\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eMoser Engineering engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Moser Engineering lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eMoser Engineering Aluminum Differential Case for Ford 9 inch Rear Ends\u003c\/h2\u003e\u003cp\u003eOptimize your Ford 9 inch rear end for extreme performance with the \u003cb\u003eMoser Engineering 3812ALU Aluminum Differential Case\u003c\/b\u003e. This premium differential case is meticulously crafted from high-grade aluminum, offering a significant weight reduction without compromising the structural integrity required for high-horsepower applications. Ideal for serious drag racers and those seeking the ultimate in lightweight drivetrain components, it ensures your power is transferred efficiently and reliably.\u003c\/p\u003e\u003ch3\u003ePrecision Machined for Peak Performance\u003c\/h3\u003e\u003cp\u003eThe 3812ALU features a precise 3.812 inch bore, engineered to provide a perfect fit and optimal gear alignment within your Ford 9 inch housing. The use of aluminum not only reduces unsprung weight for improved acceleration and handling but also aids in heat dissipation, contributing to longer component life. This comprehensive kit includes essential components such as adjuster nuts, bearing caps, and pinion support bolts, facilitating a complete and professional installation. The natural aluminum finish highlights its quality craftsmanship and robust design.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eApplication:\u003c\/b\u003e Ford 9 inch Rear Ends\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBore Size:\u003c\/b\u003e 3.812 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial:\u003c\/b\u003e High-Grade Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIncluded:\u003c\/b\u003e Adjuster Nuts, Bearing Caps, Pinion Support Bolts\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFinish:\u003c\/b\u003e Natural\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eThe Advantage of Aluminum\u003c\/h3\u003e\u003cp\u003eChoosing an aluminum differential case from Moser Engineering means investing in superior performance and durability. The reduced weight directly translates to a more responsive vehicle, while the inherent strength of the aluminum ensures it can withstand the immense forces generated by powerful engines. Moser Engineering's reputation for quality and precision makes the 3812ALU an indispensable upgrade for any Ford 9 inch build aiming for the winner's circle. Discover the difference at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Moser Engineering products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/differential-case-ford-9-inch-3-062\" style=\"color:#0066cc;text-decoration:none;\"\u003eMoser Engineering 3.062 Super Light Differential Case — Ford 9 inch Rear End\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/ford-9in-alm-carrier-case-3-250-od-bearing\" style=\"color:#0066cc;text-decoration:none;\"\u003eMoser Engineering 3250ALU Pro Case Differential — Ford 9 inch 3.250 Bore Aluminum Carrier\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/rotor-adapter-steel-8-bolt\" style=\"color:#0066cc;text-decoration:none;\"\u003eMoser Engineering Steel Rotor Adapter 5x4.75 to 8x7.000 — Disc Brake Conversion\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/dust-cap-univesal-1pk\" style=\"color:#0066cc;text-decoration:none;\"\u003eMoser Engineering Universal Aluminum Dust Cap — Wheel Hub Protection\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/gn-c-t-hub-package-steel-hub-rotor\" style=\"color:#0066cc;text-decoration:none;\"\u003eMoser Engineering Grand National Steel Hub \u0026amp; Rotor Package — 5x5 Bolt Pattern 24-Spline\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Moser Engineering 3812ALU Aluminum Differential Case \\u2014 Fits Ford 9 inch, 3.812 inch Bore\",\"description\":\"Upgrade your Ford 9 inch with a Moser Engineering 3812ALU Aluminum Differential Case. Features 3.812 inch bore for ultimate strength. Shop now!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Moser Engineering\"},\"mpn\":\"3812ALU\",\"url\":\"https:\/\/ggcracing.com\/products\/ford-9in-alm-diff-case-3-812\",\"offers\":{\"@type\":\"Offer\",\"price\":\"715.00\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/ford-9in-alm-diff-case-3-812\",\"sku\":\"BJFQ_3812ALU\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Moser Engineering\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Moser+Engineering\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Moser Engineering 3812ALU Aluminum Differential Case \\u2014 Fits Ford 9 inch, 3.812 inch Bore\",\"item\":\"https:\/\/ggcracing.com\/products\/ford-9in-alm-diff-case-3-812\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Moser Engineering 3812ALU Aluminum Differential Case \\u2014 Fits Ford 9 inch, 3.812 i fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Moser Engineering?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Moser Engineering 3812ALU Aluminum Differential Case \\u2014 Fits Ford 9 inch, 3.812 i?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Moser Engineering","offers":[{"title":"Default Title","offer_id":40872826339412,"sku":"BJFQ_3812ALU","price":715.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/MEI3812ALU.jpg?v=1714400830"},{"product_id":"currie9-inch-third-member-3-70-gear-ratio-31-spline","title":"Currie 9-Inch Third Member - 3.70 Gear Ratio 31-Spline - Ford 9-inch","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Currie\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eCurrie engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Currie lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/1-OTv8QHqes\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eUnleash Performance with the Currie 9-Inch Third Member\u003c\/h2\u003e\u003cp\u003eElevate your vehicle's drivetrain capabilities with the robust \u003cb\u003eCurrie 9-Inch Third Member\u003c\/b\u003e, meticulously engineered for Ford 9-inch rear ends. This high-performance differential carrier comes pre-assembled with a \u003cb\u003e3.70 gear ratio\u003c\/b\u003e and a durable \u003cb\u003e31-spline\u003c\/b\u003e configuration, making it an ideal upgrade for a wide range of street, strip, and off-road applications. Crafted from strong iron, this natural-finish third member is designed to withstand extreme torque and deliver consistent power to the ground.\u003c\/p\u003e\u003ch3\u003eKey Features and Benefits:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eOptimized 3.70 Gear Ratio:\u003c\/b\u003e Provides an excellent balance of acceleration and top-end speed for various driving styles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHeavy-Duty 31-Spline Carrier:\u003c\/b\u003e Ensures superior strength and reliability, capable of handling significant horsepower and torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDurable Iron Construction:\u003c\/b\u003e Built to last, offering exceptional resistance to wear and fatigue.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFord 9-Inch Compatibility:\u003c\/b\u003e Specifically designed for a direct fit into Ford 9-inch housings, simplifying installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePre-Assembled Unit:\u003c\/b\u003e Arrives ready for installation, saving time and ensuring proper setup.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhether you're looking to improve launch performance, enhance towing capacity, or simply replace an aging component, this Currie third member delivers. Its precise manufacturing and quality components guarantee a long-lasting and high-performing differential solution. Trust Currie's legacy of excellence to transform your vehicle's rear end into a powerhouse of reliability and performance.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Currie products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/currie9-inch-third-member-3-89-gear-ratio-31-spline\" style=\"color:#0066cc;text-decoration:none;\"\u003eCurrie 9-Inch Third Member 3.89 Ratio 31-Spline — Ford 9-Inch Differential\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/currie9-inch-third-member-with-4-11-gear-31-spline\" style=\"color:#0066cc;text-decoration:none;\"\u003eCurrie 9-Inch Third Member 4.11 Ratio 31-Spline — Ford 9-Inch Differential\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/currie64-66-ford-mustang-9-inc-h-housing-axle-package\" style=\"color:#0066cc;text-decoration:none;\"\u003eCurrie 9-Inch Housing \u0026amp; Axle Package — 1964-66 Ford Mustang\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/currie64-66-gm-a-body-9-inch-h-ousing-and-axle-package\" style=\"color:#0066cc;text-decoration:none;\"\u003eCurrie 9-Inch Housing \u0026amp; Axle Package — 1964-66 GM A-Body\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/currie68-72-gm-a-body-9-inch-h-ousing-and-axle-package\" style=\"color:#0066cc;text-decoration:none;\"\u003eCurrie 9-Inch Housing \u0026amp; Axle Package — Fits 1968-1972 GM A-Body\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Currie 9-Inch Third Member - 3.70 Gear Ratio 31-Spline - Ford 9-inch\",\"description\":\"Upgrade your Ford 9-inch with the Currie 9-Inch Third Member, featuring a 3.70 gear ratio and 31-spline carrier. Built for performance and durability.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Currie\"},\"mpn\":\"CE-9CT370S\",\"url\":\"https:\/\/ggcracing.com\/products\/currie9-inch-third-member-3-70-gear-ratio-31-spline\",\"offers\":{\"@type\":\"Offer\",\"price\":\"1750.00\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/currie9-inch-third-member-3-70-gear-ratio-31-spline\",\"sku\":\"DVPF_CE-9CT370S\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Currie\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Currie\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Currie 9-Inch Third Member - 3.70 Gear Ratio 31-Spline - Ford 9-inch\",\"item\":\"https:\/\/ggcracing.com\/products\/currie9-inch-third-member-3-70-gear-ratio-31-spline\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Currie 9-Inch Third Member - 3.70 Gear Ratio 31-Spline - Ford 9-inch fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Currie?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Currie 9-Inch Third Member - 3.70 Gear Ratio 31-Spline - Ford 9-inch?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Currie","offers":[{"title":"Default Title","offer_id":41119866617940,"sku":"DVPF_CE-9CT370S","price":1750.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/CUECE-9CT370S.jpg?v=1717274764"},{"product_id":"currie9-inch-third-member-3-89-gear-ratio-31-spline","title":"Currie 9-Inch Third Member 3.89 Ratio 31-Spline — Ford 9-Inch Differential","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Currie\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eCurrie engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Currie lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/ZR_ug9SecjU\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eHigh-Performance Currie 9-Inch Third Member\u003c\/h2\u003e\u003cp\u003eUpgrade your drivetrain with the legendary reliability of a Currie 9-Inch Third Member. Engineered for enthusiasts who demand precision and strength, this unit features a 3.89 gear ratio, making it an ideal choice for a balance between acceleration and highway cruising. Built from high-strength nodular iron, this third member is designed to handle the stresses of high-horsepower applications while maintaining smooth, quiet operation.\u003c\/p\u003e\u003ch3\u003eKey Features and Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eRatio: 3.890 for optimal performance\u003c\/li\u003e\n\u003cli\u003eSpline Count: 31-Spline for increased durability\u003c\/li\u003e\n\u003cli\u003eMaterial: Heavy-Duty Nodular Iron Housing\u003c\/li\u003e\n\u003cli\u003eFinish: Natural Finish for easy inspection\u003c\/li\u003e\n\u003cli\u003eCompatibility: Standard Ford 9-inch housings\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe Currie 9-inch platform is the gold standard in the automotive aftermarket for a reason. By utilizing a 31-spline setup, this third member offers significantly increased torque capacity over stock components. Whether you are building a street rod, a drag car, or a high-performance cruiser, this unit provides the confidence you need to push your vehicle to the limit. Each unit is assembled with meticulous attention to detail to ensure proper gear mesh and long-lasting performance. Don't settle for stock when you can upgrade to the proven durability of Currie engineering. Enhance your vehicle's rear-end reliability and performance with this premium component available at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Currie products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/currie9-inch-third-member-3-70-gear-ratio-31-spline\" style=\"color:#0066cc;text-decoration:none;\"\u003eCurrie 9-Inch Third Member - 3.70 Gear Ratio 31-Spline - Ford 9-inch\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/currie9-inch-third-member-with-4-11-gear-31-spline\" style=\"color:#0066cc;text-decoration:none;\"\u003eCurrie 9-Inch Third Member 4.11 Ratio 31-Spline — Ford 9-Inch Differential\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/currie64-66-ford-mustang-9-inc-h-housing-axle-package\" style=\"color:#0066cc;text-decoration:none;\"\u003eCurrie 9-Inch Housing \u0026amp; Axle Package — 1964-66 Ford Mustang\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/currie64-66-gm-a-body-9-inch-h-ousing-and-axle-package\" style=\"color:#0066cc;text-decoration:none;\"\u003eCurrie 9-Inch Housing \u0026amp; Axle Package — 1964-66 GM A-Body\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/currie68-72-gm-a-body-9-inch-h-ousing-and-axle-package\" style=\"color:#0066cc;text-decoration:none;\"\u003eCurrie 9-Inch Housing \u0026amp; Axle Package — Fits 1968-1972 GM A-Body\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Currie 9-Inch Third Member 3.89 Ratio 31-Spline \\u2014 Ford 9-Inch Differential\",\"description\":\"Boost your drivetrain performance with the Currie 9-Inch Third Member, 3.89 gear ratio, and 31-spline strength. Order your high-performance diff at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Currie\"},\"mpn\":\"CE-9CT389S\",\"url\":\"https:\/\/ggcracing.com\/products\/currie9-inch-third-member-3-89-gear-ratio-31-spline\",\"offers\":{\"@type\":\"Offer\",\"price\":\"1750.00\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/currie9-inch-third-member-3-89-gear-ratio-31-spline\",\"sku\":\"DVPF_CE-9CT389S\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Currie\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Currie\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Currie 9-Inch Third Member 3.89 Ratio 31-Spline \\u2014 Ford 9-Inch Differential\",\"item\":\"https:\/\/ggcracing.com\/products\/currie9-inch-third-member-3-89-gear-ratio-31-spline\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Currie 9-Inch Third Member 3.89 Ratio 31-Spline \\u2014 Ford 9-Inch Differential fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Currie?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Currie 9-Inch Third Member 3.89 Ratio 31-Spline \\u2014 Ford 9-Inch Differential?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Currie","offers":[{"title":"Default Title","offer_id":41119866716244,"sku":"DVPF_CE-9CT389S","price":1750.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/CUECE-9CT389S.jpg?v=1717274773"},{"product_id":"currie9-inch-third-member-with-4-11-gear-31-spline","title":"Currie 9-Inch Third Member 4.11 Ratio 31-Spline — Ford 9-Inch Differential","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Currie\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eCurrie engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Currie lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/1-OTv8QHqes\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eAggressive Performance: Currie 9-Inch Third Member 4.11\u003c\/h2\u003e\u003cp\u003eUnlock your vehicle's true potential with the Currie 9-Inch Third Member featuring a 4.11 gear ratio. This setup is specifically designed for drivers seeking improved launch characteristics and snappy acceleration. Whether you are hitting the drag strip or looking for a more responsive feel on the street, this 31-spline unit delivers the power transfer you need without compromising on the legendary Currie build quality.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eRatio: 4.110 for high-torque applications\u003c\/li\u003e\n\u003cli\u003eSpline Count: 31-Spline for superior axle engagement\u003c\/li\u003e\n\u003cli\u003eConstruction: Nodular Iron for maximum casing rigidity\u003c\/li\u003e\n\u003cli\u003eApplication: Ford 9-inch rear-end systems\u003c\/li\u003e\n\u003cli\u003eFinish: Natural cast finish\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe 4.11 gear set allows your engine to stay in its power band longer, providing a significant boost to off-the-line performance. Paired with a 31-spline carrier, this third member is built to withstand the rigors of high-torque engines. Currie's commitment to excellence means every component is inspected and assembled to meet strict tolerances, ensuring that your drivetrain remains reliable under pressure. The nodular iron construction provides the structural integrity necessary to prevent case deflection, which is critical when running lower gear ratios. This is the perfect solution for enthusiasts who want to upgrade their rear end for better performance and durability. Experience the difference in quality and precision engineering with this Currie differential upgrade, brought to you by GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Currie products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/currie9-inch-third-member-3-70-gear-ratio-31-spline\" style=\"color:#0066cc;text-decoration:none;\"\u003eCurrie 9-Inch Third Member - 3.70 Gear Ratio 31-Spline - Ford 9-inch\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/currie9-inch-third-member-3-89-gear-ratio-31-spline\" style=\"color:#0066cc;text-decoration:none;\"\u003eCurrie 9-Inch Third Member 3.89 Ratio 31-Spline — Ford 9-Inch Differential\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/currie64-66-ford-mustang-9-inc-h-housing-axle-package\" style=\"color:#0066cc;text-decoration:none;\"\u003eCurrie 9-Inch Housing \u0026amp; Axle Package — 1964-66 Ford Mustang\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/currie64-66-gm-a-body-9-inch-h-ousing-and-axle-package\" style=\"color:#0066cc;text-decoration:none;\"\u003eCurrie 9-Inch Housing \u0026amp; Axle Package — 1964-66 GM A-Body\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/currie68-72-gm-a-body-9-inch-h-ousing-and-axle-package\" style=\"color:#0066cc;text-decoration:none;\"\u003eCurrie 9-Inch Housing \u0026amp; Axle Package — Fits 1968-1972 GM A-Body\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Currie 9-Inch Third Member 4.11 Ratio 31-Spline \\u2014 Ford 9-Inch Differential\",\"description\":\"Get aggressive acceleration with the Currie 9-Inch Third Member, 4.11 gear ratio, and 31-spline. Perfect for performance builds. Buy now at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Currie\"},\"mpn\":\"CE-9CT411S\",\"url\":\"https:\/\/ggcracing.com\/products\/currie9-inch-third-member-with-4-11-gear-31-spline\",\"offers\":{\"@type\":\"Offer\",\"price\":\"1750.00\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/currie9-inch-third-member-with-4-11-gear-31-spline\",\"sku\":\"DVPF_CE-9CT411S\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Currie\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Currie\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Currie 9-Inch Third Member 4.11 Ratio 31-Spline \\u2014 Ford 9-Inch Differential\",\"item\":\"https:\/\/ggcracing.com\/products\/currie9-inch-third-member-with-4-11-gear-31-spline\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Currie 9-Inch Third Member 4.11 Ratio 31-Spline \\u2014 Ford 9-Inch Differential fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Currie?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Currie 9-Inch Third Member 4.11 Ratio 31-Spline \\u2014 Ford 9-Inch Differential?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Currie","offers":[{"title":"Default Title","offer_id":41119866814548,"sku":"DVPF_CE-9CT411S","price":1750.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/CUECE-9CT411S.jpg?v=1717274782"},{"product_id":"performance-engineering-manufacturing9in-gear-full-spool-3-70-ratio-new-center-31","title":"Performance Engineering \u0026 Manufacturing Ford 9in Assembled Full Spool 3.70 Ratio 31-Spline","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Performance Engineering \u0026amp; Manufacturing\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003ePerformance Engineering \u0026amp; Manufacturing engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Performance Engineering \u0026amp; Manufacturing lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/xKiokoEYAQA\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eFord 9-inch Assembled Full Spool Differential\u003c\/h2\u003e\u003cp\u003eAchieve maximum traction and consistent power delivery with the Performance Engineering \u0026amp; Manufacturing Assembled Full Spool. Designed for the legendary Ford 9-inch rear end, this unit is the ultimate choice for drag racing and high-performance applications where equal torque distribution to both rear wheels is non-negotiable. This pre-assembled unit saves you valuable time and ensures professional-grade setup right out of the box.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eApplication: Ford 9-inch Rear End\u003c\/li\u003e\n\u003cli\u003eRatio: 3.70 Gear Ratio\u003c\/li\u003e\n\u003cli\u003eSpline Count: 31-Spline\u003c\/li\u003e\n\u003cli\u003eConstruction: Steel Full Spool\u003c\/li\u003e\n\u003cli\u003eCondition: Assembled and Ready to Install\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eA full spool eliminates the differential action, locking the axles together for 100% power transfer to the wheels. This is critical for preventing one-wheel peels and ensuring your vehicle launches straight and hard every time. The 3.70 gear ratio provides an ideal balance between quick acceleration off the line and usable top-end speed, making it a versatile choice for a wide range of racing classes. Built from high-strength steel, this spool is designed to handle the massive torque loads generated by high-horsepower engines. The precision assembly ensures smooth operation and long-term reliability on the track. Whether you are building a dedicated drag car or a high-performance street machine, this differential case is the backbone of a strong drivetrain. Trust in the quality of Performance Engineering \u0026amp; Manufacturing for your next build. Find all your essential performance drivetrain components at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Performance Engineering \u0026amp; Manufacturing products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/standard-quick-change-gears\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering 18Q Quick Change Gear Set — 10 Spline Steel\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing400-gm-slip-yoke-1310-5-50in-32-spline\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing TH400 Slip Yoke 1310 32 Spline 5.50in — Drivetrain\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing Standard Quick Change Gears 61001 10 Spline — Stee\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears-set-1q\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing 1Q Quick Change Gear Set — 10 Spline Steel Gears\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears-1\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing 61002 Standard Quick Change Gears Set 2 10 Spline\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Performance Engineering \u0026 Manufacturing Ford 9in Assembled Full Spool 3.70 Ratio 31-Spline\",\"description\":\"Get maximum traction with this assembled Ford 9in full spool featuring a 3.70 gear ratio and 31-spline setup. Shop drivetrain parts at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Performance Engineering \u0026 Manufacturing\"},\"mpn\":\"CSFS37031\",\"url\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing9in-gear-full-spool-3-70-ratio-new-center-31\",\"offers\":{\"@type\":\"Offer\",\"price\":\"718.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing9in-gear-full-spool-3-70-ratio-new-center-31\",\"sku\":\"GSDD_CSFS37031\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Performance Engineering \u0026 Manufacturing\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Performance+Engineering+\u0026+Manufacturing\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Performance Engineering \u0026 Manufacturing Ford 9in Assembled Full Spool 3.70 Ratio 31-Spline\",\"item\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing9in-gear-full-spool-3-70-ratio-new-center-31\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Performance Engineering \u0026 Manufacturing Ford 9in Assembled Full Spool 3.70 Ratio fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Performance Engineering \u0026 Manufacturing?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Performance Engineering \u0026 Manufacturing Ford 9in Assembled Full Spool 3.70 Ratio?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Performance Engineering \u0026 Manufacturing","offers":[{"title":"Default Title","offer_id":41120357056596,"sku":"GSDD_CSFS37031","price":768.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/PEMCSFS37031.jpg?v=1717305097"},{"product_id":"performance-engineering-manufacturing9in-gear-full-spool-5-14-ratio-new-center-section","title":"Performance Engineering \u0026 Manufacturing Ford 9in Full Spool Differential Case 5.14 Ratio 31 Spline","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Performance Engineering \u0026amp; Manufacturing\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003ePerformance Engineering \u0026amp; Manufacturing engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Performance Engineering \u0026amp; Manufacturing lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/N-KFDDSfByU\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eAggressive Acceleration and Unyielding Traction for Your Ford 9in\u003c\/h2\u003e\u003cp\u003eUnleash the full potential of your Ford 9-inch rear end with the Performance Engineering \u0026amp; Manufacturing Full Spool Differential Case, featuring an aggressive 5.14 gear ratio. This assembled unit is specifically designed for serious competitors and extreme performance builds where maximum acceleration and unwavering traction are non-negotiable. By rigidly coupling both rear wheels, this full spool ensures every ounce of power is delivered directly to the ground, eliminating any differential slip.\u003c\/p\u003e\u003ch3\u003eEngineered for Extreme Performance and Durability\u003c\/h3\u003e\u003cp\u003eConstructed from high-strength steel, this full spool differential is built to endure the most punishing conditions found in drag racing, rock crawling, and other demanding motorsports. The 5.14 gear ratio provides an exceptionally low final drive, translating to explosive off-the-line acceleration and increased torque multiplication. The 31-spline design offers broad compatibility with heavy-duty axle shafts, ensuring a robust and reliable drivetrain solution.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eDifferential Type:\u003c\/b\u003e Full Spool\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eGear Ratio:\u003c\/b\u003e 5.14\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSpline Count:\u003c\/b\u003e 31 Spline\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial:\u003c\/b\u003e Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFinish:\u003c\/b\u003e Natural\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFitment:\u003c\/b\u003e Ford 9-inch Rear Ends\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAssembly:\u003c\/b\u003e Assembled New Center Section\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor vehicles where differential action is detrimental to performance, a full spool is the ultimate choice. This assembled new center section arrives ready for installation, providing a straightforward upgrade for your Ford 9in. Experience the pinnacle of traction and power transfer with this Performance Engineering \u0026amp; Manufacturing full spool, available at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Performance Engineering \u0026amp; Manufacturing products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/standard-quick-change-gears\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering 18Q Quick Change Gear Set — 10 Spline Steel\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing400-gm-slip-yoke-1310-5-50in-32-spline\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing TH400 Slip Yoke 1310 32 Spline 5.50in — Drivetrain\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing Standard Quick Change Gears 61001 10 Spline — Stee\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears-set-1q\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing 1Q Quick Change Gear Set — 10 Spline Steel Gears\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears-1\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing 61002 Standard Quick Change Gears Set 2 10 Spline\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Performance Engineering \u0026 Manufacturing Ford 9in Full Spool Differential Case 5.14 Ratio 31 Spline\",\"description\":\"Maximize your Ford 9in with a Performance Engineering \u0026 Manufacturing full spool differential case. Features a 5.14 ratio and 31 spline for aggressive acceleration. Shop now!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Performance Engineering \u0026 Manufacturing\"},\"mpn\":\"CSFS51431\",\"url\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing9in-gear-full-spool-5-14-ratio-new-center-section\",\"offers\":{\"@type\":\"Offer\",\"price\":\"718.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing9in-gear-full-spool-5-14-ratio-new-center-section\",\"sku\":\"GSDD_CSFS51431\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Performance Engineering \u0026 Manufacturing\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Performance+Engineering+\u0026+Manufacturing\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Performance Engineering \u0026 Manufacturing Ford 9in Full Spool Differential Case 5.14 Ratio 31 Spline\",\"item\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing9in-gear-full-spool-5-14-ratio-new-center-section\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Performance Engineering \u0026 Manufacturing Ford 9in Full Spool Differential Case 5. fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Performance Engineering \u0026 Manufacturing?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Performance Engineering \u0026 Manufacturing Ford 9in Full Spool Differential Case 5.?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Performance Engineering \u0026 Manufacturing","offers":[{"title":"Default Title","offer_id":41120357154900,"sku":"GSDD_CSFS51431","price":768.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/PEMCSFS51431.jpg?v=1717305113"},{"product_id":"performance-engineering-manufacturing9in-gear-full-spool-5-29-ratio-new-center-section","title":"Performance Engineering \u0026 Manufacturing 9in Ford Full Spool 5.29 Ratio Differential Center Section — Fits Ford 9 Inch Rear Ends","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Performance Engineering \u0026amp; Manufacturing\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003ePerformance Engineering \u0026amp; Manufacturing engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Performance Engineering \u0026amp; Manufacturing lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/R5v6hXYcEz0\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003ePerformance Engineering \u0026amp; Manufacturing 9in Ford Full Spool 5.29 Ratio\u003c\/h2\u003e\u003cp\u003eMaximize your drivetrain efficiency with the Performance Engineering \u0026amp; Manufacturing 9in Ford Full Spool. Designed for high-performance drag racing and off-road applications, this assembled center section features a precise 5.29 gear ratio and a robust 31-spline steel spool. By eliminating differential action, this spool ensures that both rear wheels receive equal power, providing maximum traction and consistent launches on the track.\u003c\/p\u003e\u003ch3\u003eKey Features and Technical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGear Ratio:\u003c\/strong\u003e 5.29 for optimized torque delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpline Count:\u003c\/strong\u003e 31-spline for superior axle engagement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e High-grade steel spool for maximum durability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered specifically for Ford 9-inch rear-end housings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAssembly:\u003c\/strong\u003e Fully assembled center section ready for installation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Natural steel finish for long-lasting corrosion resistance\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis differential case is built to withstand the extreme stresses of high-horsepower environments. Whether you are building a dedicated drag car or a heavy-duty trail rig, the PEM 5.29 full spool provides the reliability and performance you demand. The precision-machined gears ensure smooth operation while the full spool design locks your axles together for predictable handling under load. Trust the experts at GGCRACING to provide the high-quality drivetrain components needed to take your vehicle to the next level of performance.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Performance Engineering \u0026amp; Manufacturing products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/standard-quick-change-gears\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering 18Q Quick Change Gear Set — 10 Spline Steel\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing400-gm-slip-yoke-1310-5-50in-32-spline\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing TH400 Slip Yoke 1310 32 Spline 5.50in — Drivetrain\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing Standard Quick Change Gears 61001 10 Spline — Stee\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears-set-1q\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing 1Q Quick Change Gear Set — 10 Spline Steel Gears\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears-1\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing 61002 Standard Quick Change Gears Set 2 10 Spline\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Performance Engineering \u0026 Manufacturing 9in Ford Full Spool 5.29 Ratio Differential Center Section \\u2014 Fits Ford 9 Inch Rear Ends\",\"description\":\"Upgrade to the PEM 9in Ford Full Spool with a 5.29 gear ratio. High-strength 31-spline steel design for maximum traction. Shop now at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Performance Engineering \u0026 Manufacturing\"},\"mpn\":\"CSFS52931\",\"url\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing9in-gear-full-spool-5-29-ratio-new-center-section\",\"offers\":{\"@type\":\"Offer\",\"price\":\"718.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing9in-gear-full-spool-5-29-ratio-new-center-section\",\"sku\":\"GSDD_CSFS52931\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Performance Engineering \u0026 Manufacturing\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Performance+Engineering+\u0026+Manufacturing\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Performance Engineering \u0026 Manufacturing 9in Ford Full Spool 5.29 Ratio Differential Center Section \\u2014 Fits Ford 9 Inch Re\",\"item\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing9in-gear-full-spool-5-29-ratio-new-center-section\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Performance Engineering \u0026 Manufacturing 9in Ford Full Spool 5.29 Ratio Different fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Performance Engineering \u0026 Manufacturing?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Performance Engineering \u0026 Manufacturing 9in Ford Full Spool 5.29 Ratio Different?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. 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At GGCRACING we stock the full Performance Engineering \u0026amp; Manufacturing lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/N-KFDDSfByU\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003ePerformance Engineering \u0026amp; Manufacturing 9in Ford Full Spool 5.43 Ratio\u003c\/h2\u003e\u003cp\u003eThe Performance Engineering \u0026amp; Manufacturing 9in Ford Full Spool with a 5.43 gear ratio is the ultimate solution for racers seeking maximum power transfer. This assembled center section is designed to lock your rear wheels together, ensuring that 100% of your engine's torque is applied to the pavement. Built with a 31-spline steel spool, this unit is engineered to handle the rigorous demands of high-performance drag racing and competitive motorsports.\u003c\/p\u003e\u003ch3\u003eTechnical Advantages and Fitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGear Ratio:\u003c\/strong\u003e 5.43 for aggressive acceleration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpline Count:\u003c\/strong\u003e 31-spline compatibility for standard performance axles\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heavy-duty steel construction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Direct fit for Ford 9-inch rear-end housings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesign:\u003c\/strong\u003e Full spool configuration for consistent power delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliability:\u003c\/strong\u003e Pre-assembled for a hassle-free installation process\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhen every millisecond counts, you need a differential that won't slip or fail. The PEM 5.43 full spool eliminates the weaknesses of standard limited-slip or open differentials, providing a solid connection between your axles. This setup is ideal for vehicles where straight-line traction is the primary goal. The high-quality steel construction ensures that this unit remains reliable pass after pass, even under extreme stress. Upgrade your rear end with this precision-engineered component and experience the difference in your vehicle's launch performance. Find all your essential drivetrain upgrades at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Performance Engineering \u0026amp; Manufacturing products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/standard-quick-change-gears\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering 18Q Quick Change Gear Set — 10 Spline Steel\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing400-gm-slip-yoke-1310-5-50in-32-spline\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing TH400 Slip Yoke 1310 32 Spline 5.50in — Drivetrain\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing Standard Quick Change Gears 61001 10 Spline — Stee\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears-set-1q\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing 1Q Quick Change Gear Set — 10 Spline Steel Gears\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears-1\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing 61002 Standard Quick Change Gears Set 2 10 Spline\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Performance Engineering \u0026 Manufacturing 9in Ford Full Spool 5.43 Ratio Differential Center Section \\u2014 Fits Ford 9 Inch Rear Ends\",\"description\":\"Boost your launch with the PEM 9in Ford Full Spool 5.43 ratio. 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See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Performance Engineering \u0026 Manufacturing","offers":[{"title":"Default Title","offer_id":41120357285972,"sku":"GSDD_CSFS54331","price":768.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/PEMCSFS54331.jpg?v=1717305131"},{"product_id":"performance-engineering-manufacturing9in-gear-full-spool-5-67-ratio-new-center-section","title":"Performance Engineering \u0026 Manufacturing 9in Ford Full Spool 5.67 Ratio Differential Center Section — Fits Ford 9 Inch Rear Ends","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Performance Engineering \u0026amp; Manufacturing\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003ePerformance Engineering \u0026amp; Manufacturing engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Performance Engineering \u0026amp; Manufacturing lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003ePerformance Engineering \u0026amp; Manufacturing 9in Ford Full Spool 5.67 Ratio\u003c\/h2\u003e\u003cp\u003eExperience unmatched traction with the Performance Engineering \u0026amp; Manufacturing 9in Ford Full Spool featuring a 5.67 gear ratio. This high-performance center section is specifically designed for enthusiasts who demand consistent power delivery to both rear wheels. By utilizing a full spool design, this unit eliminates internal differential movement, providing a solid, locked rear end that is essential for drag racing and high-torque applications.\u003c\/p\u003e\u003ch3\u003eKey Specifications and Performance Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGear Ratio:\u003c\/strong\u003e 5.67 for maximum torque multiplication\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpline Count:\u003c\/strong\u003e 31-spline for robust axle connection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e High-strength steel spool\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for Ford 9-inch rear-end setups\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerformance:\u003c\/strong\u003e Eliminates wheel spin and ensures equal power distribution\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Fully assembled for immediate drop-in capability\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe 5.67 ratio is perfect for racers looking to optimize their vehicle's acceleration off the line. The 31-spline steel spool is engineered to withstand the high-shock loads associated with rapid acceleration, ensuring that your drivetrain remains intact during intense competition. Because this unit is fully assembled, you can spend less time in the garage and more time on the track. The natural finish provides a clean look while the precision-cut gears ensure quiet and efficient operation. Invest in the durability of Performance Engineering \u0026amp; Manufacturing and feel the difference in your next race. For all your high-performance drivetrain needs, look no further than GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Performance Engineering \u0026amp; Manufacturing products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/standard-quick-change-gears\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering 18Q Quick Change Gear Set — 10 Spline Steel\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing400-gm-slip-yoke-1310-5-50in-32-spline\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing TH400 Slip Yoke 1310 32 Spline 5.50in — Drivetrain\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing Standard Quick Change Gears 61001 10 Spline — Stee\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears-set-1q\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing 1Q Quick Change Gear Set — 10 Spline Steel Gears\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears-1\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing 61002 Standard Quick Change Gears Set 2 10 Spline\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Performance Engineering \u0026 Manufacturing 9in Ford Full Spool 5.67 Ratio Differential Center Section \\u2014 Fits Ford 9 Inch Rear Ends\",\"description\":\"Get superior traction with the PEM 9in Ford Full Spool 5.67 ratio. 31-spline steel construction for high-performance builds. Shop online at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Performance Engineering \u0026 Manufacturing\"},\"mpn\":\"CSFS56731\",\"url\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing9in-gear-full-spool-5-67-ratio-new-center-section\",\"offers\":{\"@type\":\"Offer\",\"price\":\"718.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing9in-gear-full-spool-5-67-ratio-new-center-section\",\"sku\":\"GSDD_CSFS56731\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Performance Engineering \u0026 Manufacturing\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Performance+Engineering+\u0026+Manufacturing\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Performance Engineering \u0026 Manufacturing 9in Ford Full Spool 5.67 Ratio Differential Center Section \\u2014 Fits Ford 9 Inch Re\",\"item\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing9in-gear-full-spool-5-67-ratio-new-center-section\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Performance Engineering \u0026 Manufacturing 9in Ford Full Spool 5.67 Ratio Different fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Performance Engineering \u0026 Manufacturing?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Performance Engineering \u0026 Manufacturing 9in Ford Full Spool 5.67 Ratio Different?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Performance Engineering \u0026 Manufacturing","offers":[{"title":"Default Title","offer_id":41120357318740,"sku":"GSDD_CSFS56731","price":768.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/PEMCSFS56731.jpg?v=1717305139"},{"product_id":"performance-engineering-manufacturing9in-gear-full-spool-5-83-ratio-new-center-section","title":"Performance Engineering \u0026 Manufacturing 9in Ford Full Spool 5.83 Ratio Differential Center Section — Fits Ford 9 Inch Rear Ends","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Performance Engineering \u0026amp; Manufacturing\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003ePerformance Engineering \u0026amp; Manufacturing engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Performance Engineering \u0026amp; Manufacturing lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/TWJxTSVp45M\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003ePerformance Engineering \u0026amp; Manufacturing 9in Ford Full Spool 5.83 Ratio\u003c\/h2\u003e\u003cp\u003eThe Performance Engineering \u0026amp; Manufacturing 9in Ford Full Spool with a 5.83 gear ratio is built for those who refuse to compromise on traction. This heavy-duty center section is the perfect upgrade for Ford 9-inch rear ends, providing a locked axle configuration that guarantees equal power to both wheels. Whether you are competing in drag racing or specialized off-road events, this 31-spline steel spool offers the strength and reliability required for high-performance success.\u003c\/p\u003e\u003ch3\u003eTechnical Features and Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGear Ratio:\u003c\/strong\u003e 5.83 for extreme torque output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpline Count:\u003c\/strong\u003e 31-spline for secure axle fitment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Durable steel spool construction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Engineered for Ford 9-inch housings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerformance:\u003c\/strong\u003e Provides consistent, locked-axle traction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReady-to-Install:\u003c\/strong\u003e Fully assembled center section\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe 5.83 ratio is an excellent choice for vehicles requiring significant torque multiplication to get moving quickly. The full spool design is a proven method for eliminating the inconsistencies of standard differentials, ensuring that your vehicle tracks straight and launches hard every single time. With its high-strength steel construction, this unit is capable of handling the intense torque loads of modern high-horsepower engines. The unit comes fully assembled, ensuring that the gear mesh and setup are performed to exact specifications. Enhance your vehicle's drivetrain with the precision and reliability of Performance Engineering \u0026amp; Manufacturing. For premium automotive parts and expert advice, trust the team at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Performance Engineering \u0026amp; Manufacturing products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/standard-quick-change-gears\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering 18Q Quick Change Gear Set — 10 Spline Steel\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing400-gm-slip-yoke-1310-5-50in-32-spline\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing TH400 Slip Yoke 1310 32 Spline 5.50in — Drivetrain\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing Standard Quick Change Gears 61001 10 Spline — Stee\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears-set-1q\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing 1Q Quick Change Gear Set — 10 Spline Steel Gears\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears-1\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing 61002 Standard Quick Change Gears Set 2 10 Spline\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Performance Engineering \u0026 Manufacturing 9in Ford Full Spool 5.83 Ratio Differential Center Section \\u2014 Fits Ford 9 Inch Rear Ends\",\"description\":\"Upgrade your drivetrain with the PEM 9in Ford Full Spool 5.83 ratio. 31-spline steel design for maximum traction and performance. Buy at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Performance Engineering \u0026 Manufacturing\"},\"mpn\":\"CSFS58331\",\"url\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing9in-gear-full-spool-5-83-ratio-new-center-section\",\"offers\":{\"@type\":\"Offer\",\"price\":\"718.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing9in-gear-full-spool-5-83-ratio-new-center-section\",\"sku\":\"GSDD_CSFS58331\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Performance Engineering \u0026 Manufacturing\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Performance+Engineering+\u0026+Manufacturing\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Performance Engineering \u0026 Manufacturing 9in Ford Full Spool 5.83 Ratio Differential Center Section \\u2014 Fits Ford 9 Inch Re\",\"item\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing9in-gear-full-spool-5-83-ratio-new-center-section\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Performance Engineering \u0026 Manufacturing 9in Ford Full Spool 5.83 Ratio Different fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Performance Engineering \u0026 Manufacturing?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Performance Engineering \u0026 Manufacturing 9in Ford Full Spool 5.83 Ratio Different?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Performance Engineering \u0026 Manufacturing","offers":[{"title":"Default Title","offer_id":41120357351508,"sku":"GSDD_CSFS58331","price":718.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/PEMCSFS58331.jpg?v=1717305147"},{"product_id":"performance-engineering-manufacturing9in-gear-full-spool-6-00-ratio-new-center-section","title":"Performance Engineering 9in Full Spool Differential Case 6.00 Ratio 31 Spline — Ford 9-Inch","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Performance Engineering \u0026amp; Manufacturing\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003ePerformance Engineering \u0026amp; Manufacturing engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Performance Engineering \u0026amp; Manufacturing lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eUnleash Maximum Acceleration with PEM 9in Full Spool Differential Case\u003c\/h2\u003e\u003cp\u003ePush the limits of your vehicle's performance with the Performance Engineering \u0026amp; Manufacturing (PEM) 9in Full Spool Differential Case. This meticulously assembled center section is engineered for the most demanding racing applications, ensuring absolute power delivery to both rear wheels by eliminating differential action. The extreme 6.00 gear ratio is specifically designed for vehicles requiring the most aggressive acceleration and highest torque multiplication, making it an essential upgrade for any serious Ford 9-inch build.\u003c\/p\u003e\u003ch3\u003eBuilt for Relentless Durability and Performance\u003c\/h3\u003e\u003cp\u003eConstructed from premium, high-tensile steel, this PEM full spool is forged to withstand the most brutal forces and stresses encountered in competitive motorsports. Its raw, natural finish not only highlights the superior material but also guarantees long-lasting durability without compromise. Featuring a 31-spline design, this spool offers extensive compatibility with heavy-duty axle shafts, providing a robust and reliable connection within your Ford 9-inch housing. Experience a straightforward installation and an immediate, dramatic improvement in your vehicle's launch capabilities.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eGear Ratio:\u003c\/b\u003e 6.00\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSpline Count:\u003c\/b\u003e 31 Spline\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial:\u003c\/b\u003e High-Strength Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFinish:\u003c\/b\u003e Natural\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eApplication:\u003c\/b\u003e Ford 9-Inch Rear Ends\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eType:\u003c\/b\u003e Full Spool Differential Case, Assembled\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eThe Competitive Edge of a Full Spool\u003c\/h3\u003e\u003cp\u003eFor dedicated racing machines where every fraction of a second counts, a full spool is the ultimate performance advantage. By rigidly connecting the axle shafts, it guarantees that both drive wheels receive equal, uninterrupted power, eliminating any potential for wheel spin and maximizing forward thrust. This translates directly to lightning-fast launches, superior straight-line stability, and predictable control under the most extreme conditions. Equip your Ford 9-inch with PEM's top-tier full spool and leave the competition in your dust.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Performance Engineering \u0026amp; Manufacturing products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/standard-quick-change-gears\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering 18Q Quick Change Gear Set — 10 Spline Steel\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing400-gm-slip-yoke-1310-5-50in-32-spline\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing TH400 Slip Yoke 1310 32 Spline 5.50in — Drivetrain\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing Standard Quick Change Gears 61001 10 Spline — Stee\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears-set-1q\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing 1Q Quick Change Gear Set — 10 Spline Steel Gears\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears-1\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing 61002 Standard Quick Change Gears Set 2 10 Spline\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Performance Engineering 9in Full Spool Differential Case 6.00 Ratio 31 Spline \\u2014 Ford 9-Inch\",\"description\":\"Achieve unparalleled acceleration with the PEM 9in Full Spool Differential Case, featuring a 6.00 ratio and 31-spline steel construction for Ford 9-inch rears. Shop now!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Performance Engineering \u0026 Manufacturing\"},\"mpn\":\"CSFS60031\",\"url\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing9in-gear-full-spool-6-00-ratio-new-center-section\",\"offers\":{\"@type\":\"Offer\",\"price\":\"718.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing9in-gear-full-spool-6-00-ratio-new-center-section\",\"sku\":\"GSDD_CSFS60031\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Performance Engineering \u0026 Manufacturing\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Performance+Engineering+\u0026+Manufacturing\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Performance Engineering 9in Full Spool Differential Case 6.00 Ratio 31 Spline \\u2014 Ford 9-Inch\",\"item\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing9in-gear-full-spool-6-00-ratio-new-center-section\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Performance Engineering 9in Full Spool Differential Case 6.00 Ratio 31 Spline \\u2014  fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Performance Engineering \u0026 Manufacturing?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Performance Engineering 9in Full Spool Differential Case 6.00 Ratio 31 Spline \\u2014 ?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Performance Engineering \u0026 Manufacturing","offers":[{"title":"Default Title","offer_id":41120357384276,"sku":"GSDD_CSFS60031","price":768.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/PEMCSFS60031.jpg?v=1717305156"},{"product_id":"performance-engineering-manufacturing9in-gear-full-spool-6-20-ratio-new-center-section","title":"Performance Engineering \u0026 Manufacturing 9in Ford Full Spool 6.20 Ratio Differential Center Section — Fits Ford 9 Inch Rear Ends","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Performance Engineering \u0026amp; Manufacturing\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003ePerformance Engineering \u0026amp; Manufacturing engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Performance Engineering \u0026amp; Manufacturing lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003ePerformance Engineering \u0026amp; Manufacturing 9in Ford Full Spool 6.20 Ratio\u003c\/h2\u003e\u003cp\u003eUnleash the full potential of your vehicle with the Performance Engineering \u0026amp; Manufacturing 9in Ford Full Spool featuring a 6.20 gear ratio. This high-performance center section is designed for extreme torque applications where maximum traction is non-negotiable. By locking your rear axles together, this full spool ensures that both wheels turn at the exact same speed, providing the consistent power delivery needed for record-breaking launches and superior handling on the track.\u003c\/p\u003e\u003ch3\u003eWhy Choose the PEM 6.20 Full Spool?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGear Ratio:\u003c\/strong\u003e 6.20 for maximum torque multiplication\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpline Count:\u003c\/strong\u003e 31-spline for reliable axle engagement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e High-strength steel for long-term durability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Perfectly fits Ford 9-inch rear ends\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerformance:\u003c\/strong\u003e Eliminates differential slip for consistent power\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConvenience:\u003c\/strong\u003e Fully assembled and ready for installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe 6.20 gear ratio is specifically engineered for high-performance setups that need to get up to speed in a hurry. The 31-spline steel spool provides the structural integrity needed to handle the massive forces exerted during high-RPM launches. Because this center section arrives fully assembled, you can be confident that the gear mesh is set correctly, reducing the risk of premature wear or failure. This is the ultimate component for serious racers who demand the best in drivetrain technology. Upgrade your Ford 9-inch rear end today and experience the difference in power delivery and track performance. Find this and other high-quality racing parts at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Performance Engineering \u0026amp; Manufacturing products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/standard-quick-change-gears\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering 18Q Quick Change Gear Set — 10 Spline Steel\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing400-gm-slip-yoke-1310-5-50in-32-spline\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing TH400 Slip Yoke 1310 32 Spline 5.50in — Drivetrain\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing Standard Quick Change Gears 61001 10 Spline — Stee\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears-set-1q\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing 1Q Quick Change Gear Set — 10 Spline Steel Gears\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears-1\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing 61002 Standard Quick Change Gears Set 2 10 Spline\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Performance Engineering \u0026 Manufacturing 9in Ford Full Spool 6.20 Ratio Differential Center Section \\u2014 Fits Ford 9 Inch Rear Ends\",\"description\":\"Get maximum torque with the PEM 9in Ford Full Spool 6.20 ratio. 31-spline steel construction for ultimate race performance. 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Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Performance Engineering \u0026 Manufacturing?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Performance Engineering \u0026 Manufacturing 9in Ford Full Spool 6.20 Ratio Different?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Performance Engineering \u0026 Manufacturing","offers":[{"title":"Default Title","offer_id":41120357417044,"sku":"GSDD_CSFS62031","price":768.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/PEMCSFS62031.jpg?v=1717305164"},{"product_id":"performance-engineering-manufacturing9in-gear-full-spool-6-33-ratio-new-center-section","title":"Performance Engineering 9in Full Spool 6.33 Ratio 31 Spline Differential Center Section — Ford 9in Rear End","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Performance Engineering \u0026amp; Manufacturing\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003ePerformance Engineering \u0026amp; Manufacturing engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Performance Engineering \u0026amp; Manufacturing lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/LyrjpwRMVN8\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eHigh-Performance Ford 9in Differential Center Section\u003c\/h2\u003e\u003cp\u003eExperience unmatched traction and reliability with the Performance Engineering 9in Full Spool Center Section. Engineered for high-torque racing applications, this 6.33 gear ratio assembly is designed to handle the rigors of the track while providing consistent power transfer to the wheels. Featuring a robust 31-spline steel spool, this unit eliminates differential slip, ensuring both rear tires rotate at the exact same speed for maximum launch efficiency.\u003c\/p\u003e\u003ch3\u003eKey Technical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGear Ratio: 6.33\u003c\/li\u003e\n\u003cli\u003eSpline Count: 31-Spline\u003c\/li\u003e\n\u003cli\u003eMaterial: High-Strength Steel Spool\u003c\/li\u003e\n\u003cli\u003eApplication: Ford 9in Rear End\u003c\/li\u003e\n\u003cli\u003eFinish: Natural\u003c\/li\u003e\n\u003cli\u003eCondition: Fully Assembled\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis center section arrives fully assembled and ready for installation, saving you valuable time in the garage. Whether you are building a dedicated drag car or a high-performance street machine, this spool provides the structural integrity needed for aggressive driving. The precision-machined gears ensure smooth operation and long-term durability under heavy load. By choosing this Performance Engineering unit, you are investing in a proven drivetrain solution that delivers reliable performance pass after pass. Find all your essential drivetrain components and high-performance upgrades at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Performance Engineering \u0026amp; Manufacturing products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/standard-quick-change-gears\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering 18Q Quick Change Gear Set — 10 Spline Steel\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing400-gm-slip-yoke-1310-5-50in-32-spline\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing TH400 Slip Yoke 1310 32 Spline 5.50in — Drivetrain\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing Standard Quick Change Gears 61001 10 Spline — Stee\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears-set-1q\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing 1Q Quick Change Gear Set — 10 Spline Steel Gears\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears-1\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing 61002 Standard Quick Change Gears Set 2 10 Spline\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Performance Engineering 9in Full Spool 6.33 Ratio 31 Spline Differential Center Section \\u2014 Ford 9in Rear End\",\"description\":\"Upgrade your Ford 9in rear end with the Performance Engineering 6.33 ratio full spool center section. 31-spline durability for racing. 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Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Performance Engineering \u0026 Manufacturing?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Performance Engineering 9in Full Spool 6.33 Ratio 31 Spline Differential Center ?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Performance Engineering \u0026 Manufacturing","offers":[{"title":"Default Title","offer_id":41120357449812,"sku":"GSDD_CSFS63331","price":768.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/PEMCSFS63331.jpg?v=1717305173"},{"product_id":"performance-engineering-manufacturing9in-gear-full-spool-6-50-ratio-new-center-section","title":"Performance Engineering 9in Full Spool 6.50 Ratio 31 Spline Differential Center Section — Ford 9in Rear End","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Performance Engineering \u0026amp; Manufacturing\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003ePerformance Engineering \u0026amp; Manufacturing engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Performance Engineering \u0026amp; Manufacturing lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/EreBCdBzOLs\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003ePrecision-Engineered Ford 9in Differential Spool\u003c\/h2\u003e\u003cp\u003eOptimize your vehicle's launch and acceleration with the Performance Engineering 9in Full Spool Center Section, featuring a 6.50 gear ratio. Designed specifically for the iconic Ford 9in rear end, this unit is the ultimate choice for racers who demand consistent, locked-in traction. The full spool design ensures that both axles are locked together, providing equal power distribution to both rear tires, which is essential for straight-line performance and drag strip dominance.\u003c\/p\u003e\u003ch3\u003eTechnical Features and Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGear Ratio: 6.50\u003c\/li\u003e\n\u003cli\u003eSpline Count: 31-Spline\u003c\/li\u003e\n\u003cli\u003eConstruction: Durable Steel Spool\u003c\/li\u003e\n\u003cli\u003eFitment: Ford 9in Housing\u003c\/li\u003e\n\u003cli\u003eAssembly: Pre-Assembled for Ease of Install\u003c\/li\u003e\n\u003cli\u003eFinish: Natural Steel\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eBuilt to withstand extreme torque, this 31-spline spool is manufactured to exact tolerances to minimize friction and prevent premature wear. The 6.50 ratio is ideal for specific track setups requiring high mechanical advantage. By utilizing this pre-assembled center section, you reduce the complexity of your drivetrain build, allowing for a quicker turnaround between races. The natural finish highlights the high-quality steel construction, reflecting the durability expected from professional-grade racing equipment. Trust in the precision of Performance Engineering to keep your car moving forward with authority. For the best selection of racing drivetrain components, visit GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Performance Engineering \u0026amp; Manufacturing products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/standard-quick-change-gears\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering 18Q Quick Change Gear Set — 10 Spline Steel\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing400-gm-slip-yoke-1310-5-50in-32-spline\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing TH400 Slip Yoke 1310 32 Spline 5.50in — Drivetrain\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing Standard Quick Change Gears 61001 10 Spline — Stee\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears-set-1q\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing 1Q Quick Change Gear Set — 10 Spline Steel Gears\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears-1\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing 61002 Standard Quick Change Gears Set 2 10 Spline\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Performance Engineering 9in Full Spool 6.50 Ratio 31 Spline Differential Center Section \\u2014 Ford 9in Rear End\",\"description\":\"Maximize your launch with the Performance Engineering 6.50 ratio full spool center section. 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Buy quality parts at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Performance Engineering \u0026 Manufacturing\"},\"mpn\":\"CSFS65031\",\"url\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing9in-gear-full-spool-6-50-ratio-new-center-section\",\"offers\":{\"@type\":\"Offer\",\"price\":\"718.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing9in-gear-full-spool-6-50-ratio-new-center-section\",\"sku\":\"GSDD_CSFS65031\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Performance Engineering \u0026 Manufacturing\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Performance+Engineering+\u0026+Manufacturing\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Performance Engineering 9in Full Spool 6.50 Ratio 31 Spline Differential Center Section \\u2014 Ford 9in Rear End\",\"item\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing9in-gear-full-spool-6-50-ratio-new-center-section\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Performance Engineering 9in Full Spool 6.50 Ratio 31 Spline Differential Center  fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Performance Engineering \u0026 Manufacturing?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Performance Engineering 9in Full Spool 6.50 Ratio 31 Spline Differential Center ?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Performance Engineering \u0026 Manufacturing","offers":[{"title":"Default Title","offer_id":41120357482580,"sku":"GSDD_CSFS65031","price":768.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/PEMCSFS65031.jpg?v=1717305181"},{"product_id":"performance-engineering-manufacturingnew-center-section-fs-6-83-ratio-31-spline-l-w","title":"Performance Engineering 9in Lightweight Full Spool 6.83 Ratio 31 Spline Differential — Ford 9in Rear End","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Performance Engineering \u0026amp; Manufacturing\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003ePerformance Engineering \u0026amp; Manufacturing engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Performance Engineering \u0026amp; Manufacturing lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eLightweight Performance for Ford 9in Rear Ends\u003c\/h2\u003e\u003cp\u003eGain a competitive edge with the Performance Engineering Lightweight Full Spool Center Section. Featuring a 6.83 gear ratio, this unit is specifically engineered to reduce rotating mass, allowing for quicker acceleration and improved throttle response. Designed for the Ford 9in rear end, this lightweight assembly is perfect for racers looking to shave precious weight without sacrificing the strength required for high-horsepower applications.\u003c\/p\u003e\u003ch3\u003ePerformance-Focused Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGear Ratio: 6.83\u003c\/li\u003e\n\u003cli\u003eSpline Count: 31-Spline\u003c\/li\u003e\n\u003cli\u003eDesign: Lightweight Construction\u003c\/li\u003e\n\u003cli\u003eMaterial: High-Strength Steel Spool\u003c\/li\u003e\n\u003cli\u003eFitment: Ford 9in Rear End\u003c\/li\u003e\n\u003cli\u003eCondition: Fully Assembled\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe 31-spline steel spool provides the necessary durability to handle aggressive launches, while the lightweight design minimizes inertia, helping your engine reach its power band faster. This center section is fully assembled, ensuring a straightforward installation process for your racing vehicle. Whether you are competing in drag racing or specialized track events, the 6.83 ratio offers the mechanical advantage needed to get off the line effectively. The natural finish and precision engineering ensure this unit stands up to the demands of the track. Upgrade your drivetrain with confidence knowing you have a component designed for speed and reliability. Explore more high-performance racing gear and drivetrain solutions at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Performance Engineering \u0026amp; Manufacturing products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/standard-quick-change-gears\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering 18Q Quick Change Gear Set — 10 Spline Steel\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing400-gm-slip-yoke-1310-5-50in-32-spline\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing TH400 Slip Yoke 1310 32 Spline 5.50in — Drivetrain\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing Standard Quick Change Gears 61001 10 Spline — Stee\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears-set-1q\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing 1Q Quick Change Gear Set — 10 Spline Steel Gears\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears-1\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing 61002 Standard Quick Change Gears Set 2 10 Spline\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Performance Engineering 9in Lightweight Full Spool 6.83 Ratio 31 Spline Differential \\u2014 Ford 9in Rear End\",\"description\":\"Reduce rotating mass with the Performance Engineering 6.83 lightweight full spool for Ford 9in. High-performance racing parts available at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Performance Engineering \u0026 Manufacturing\"},\"mpn\":\"CSFS68331LW\",\"url\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingnew-center-section-fs-6-83-ratio-31-spline-l-w\",\"offers\":{\"@type\":\"Offer\",\"price\":\"789.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingnew-center-section-fs-6-83-ratio-31-spline-l-w\",\"sku\":\"GSDD_CSFS68331LW\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Performance Engineering \u0026 Manufacturing\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Performance+Engineering+\u0026+Manufacturing\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Performance Engineering 9in Lightweight Full Spool 6.83 Ratio 31 Spline Differential \\u2014 Ford 9in Rear End\",\"item\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingnew-center-section-fs-6-83-ratio-31-spline-l-w\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Performance Engineering 9in Lightweight Full Spool 6.83 Ratio 31 Spline Differen fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Performance Engineering \u0026 Manufacturing?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Performance Engineering 9in Lightweight Full Spool 6.83 Ratio 31 Spline Differen?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Performance Engineering \u0026 Manufacturing","offers":[{"title":"Default Title","offer_id":41120357515348,"sku":"GSDD_CSFS68331LW","price":858.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/PEMCSFS68331LW.jpg?v=1717305190"},{"product_id":"performance-engineering-manufacturingnew-center-section-fs-7-00-ratio-31-spline-l-w","title":"Performance Engineering \u0026 Manufacturing 9in Lightweight Full Spool Differential Case 7.00 Ratio 31 Spline — Fits Ford 9in","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Performance Engineering \u0026amp; Manufacturing\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003ePerformance Engineering \u0026amp; Manufacturing engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Performance Engineering \u0026amp; Manufacturing lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eExtreme Gearing: PEM 9in Lightweight Full Spool Differential Case (7.00 Ratio, L\/W)\u003c\/h2\u003e\u003cp\u003ePush the limits of your vehicle's acceleration with the Performance Engineering \u0026amp; Manufacturing (PEM) 9in Lightweight Full Spool Differential Case. This high-performance, pre-assembled unit boasts an extreme 7.00 gear ratio and a robust 31-spline steel spool, meticulously engineered for the Ford 9-inch rear end. The lightweight construction significantly reduces rotating mass, providing a distinct advantage in drag racing and other high-demand applications where every ounce and every RPM counts.\u003c\/p\u003e\u003ch3\u003ePrecision Crafted for Peak Performance\u003c\/h3\u003e\u003cp\u003eBuilt from premium, high-strength steel with strategic weight-saving measures, this PEM lightweight full spool offers an exceptional balance of durability and performance enhancement. Its natural finish reflects the raw, unadulterated quality of its construction. As a complete new center section, it arrives fully assembled, simplifying the installation process and ensuring a perfect fit. The aggressive 7.00 ratio is designed for specialized racing setups, delivering explosive launches and rapid acceleration.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eGear Ratio:\u003c\/b\u003e 7.00\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSpline Count:\u003c\/b\u003e 31 Spline\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSpool Material:\u003c\/b\u003e High-Strength Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eApplication:\u003c\/b\u003e Ford 9-inch Rear End\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFeature:\u003c\/b\u003e Lightweight Design\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFinish:\u003c\/b\u003e Natural\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAssembly:\u003c\/b\u003e Fully Assembled New Center Section\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eThe Edge in Competition\u003c\/h3\u003e\u003cp\u003eFor serious competitors, optimizing every component for speed is paramount. This lightweight full spool not only ensures unwavering power transfer by locking the axle shafts, but its reduced mass directly contributes to improved throttle response and quicker elapsed times. When maximum acceleration and uncompromising traction are your goals, the PEM lightweight full spool with a 7.00 ratio is the definitive choice. Find your competitive advantage at GGCRACING.COM.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Performance Engineering \u0026amp; Manufacturing products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/standard-quick-change-gears\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering 18Q Quick Change Gear Set — 10 Spline Steel\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing400-gm-slip-yoke-1310-5-50in-32-spline\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing TH400 Slip Yoke 1310 32 Spline 5.50in — Drivetrain\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing Standard Quick Change Gears 61001 10 Spline — Stee\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears-set-1q\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing 1Q Quick Change Gear Set — 10 Spline Steel Gears\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears-1\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing 61002 Standard Quick Change Gears Set 2 10 Spline\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Performance Engineering \u0026 Manufacturing 9in Lightweight Full Spool Differential Case 7.00 Ratio 31 Spline \\u2014 Fits Ford 9in\",\"description\":\"Maximize acceleration with the PEM 9in Lightweight Full Spool Differential Case, 7.00 ratio, 31 spline, for Ford 9in. Race-ready performance. Shop now!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Performance Engineering \u0026 Manufacturing\"},\"mpn\":\"CSFS70031LW\",\"url\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingnew-center-section-fs-7-00-ratio-31-spline-l-w\",\"offers\":{\"@type\":\"Offer\",\"price\":\"789.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingnew-center-section-fs-7-00-ratio-31-spline-l-w\",\"sku\":\"GSDD_CSFS70031LW\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Performance Engineering \u0026 Manufacturing\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Performance+Engineering+\u0026+Manufacturing\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Performance Engineering \u0026 Manufacturing 9in Lightweight Full Spool Differential Case 7.00 Ratio 31 Spline \\u2014 Fits Ford 9i\",\"item\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingnew-center-section-fs-7-00-ratio-31-spline-l-w\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Performance Engineering \u0026 Manufacturing 9in Lightweight Full Spool Differential  fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Performance Engineering \u0026 Manufacturing?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Performance Engineering \u0026 Manufacturing 9in Lightweight Full Spool Differential ?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Performance Engineering \u0026 Manufacturing","offers":[{"title":"Default Title","offer_id":41120357548116,"sku":"GSDD_CSFS70031LW","price":858.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/PEMCSFS70031LW.jpg?v=1717305198"},{"product_id":"performance-engineering-manufacturing9in-center-section-eaton-tru-trac-3-70-ratio","title":"Performance Engineering 9in Eaton Tru Trac 3.70 Ratio 35 Spline Differential Center Section — Ford 9in Rear End","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Performance Engineering \u0026amp; Manufacturing\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003ePerformance Engineering \u0026amp; Manufacturing engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Performance Engineering \u0026amp; Manufacturing lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/lZmsY2YvVsc\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eAdvanced Traction with Eaton Tru Trac Technology\u003c\/h2\u003e\u003cp\u003eExperience superior handling and traction with the Performance Engineering 9in Center Section, featuring the renowned Eaton Tru Trac limited-slip differential. This 3.70 ratio assembly is designed for enthusiasts who demand a balance between street-friendly manners and track-ready performance. Unlike a traditional spool, the Tru Trac helical gear design provides smooth, automatic torque biasing, ensuring power is delivered to the wheel with the most grip without the harshness of a locked rear end.\u003c\/p\u003e\u003ch3\u003eTechnical Highlights\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDifferential Type: Eaton Tru Trac\u003c\/li\u003e\n\u003cli\u003eGear Ratio: 3.70\u003c\/li\u003e\n\u003cli\u003eSpline Count: 35-Spline\u003c\/li\u003e\n\u003cli\u003eFitment: Ford 9in Rear End\u003c\/li\u003e\n\u003cli\u003eConstruction: High-Strength Steel\u003c\/li\u003e\n\u003cli\u003eAssembly: Fully Assembled\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe 35-spline axle compatibility ensures maximum strength for high-torque engines, making this an ideal choice for high-performance street cars and pro-touring builds. The 3.70 gear ratio offers an excellent balance of acceleration and highway cruising capability. Because it is a helical gear-based system, it requires no maintenance or clutch packs, providing consistent performance for the life of the unit. This center section comes fully assembled, ensuring that your installation is precise and hassle-free. By choosing this Eaton Tru Trac setup, you are upgrading to one of the most reliable and effective traction solutions available for the Ford 9in platform. Find this and other premium drivetrain upgrades for your vehicle at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Performance Engineering \u0026amp; Manufacturing products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/standard-quick-change-gears\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering 18Q Quick Change Gear Set — 10 Spline Steel\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing400-gm-slip-yoke-1310-5-50in-32-spline\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing TH400 Slip Yoke 1310 32 Spline 5.50in — Drivetrain\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing Standard Quick Change Gears 61001 10 Spline — Stee\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears-set-1q\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing 1Q Quick Change Gear Set — 10 Spline Steel Gears\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears-1\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing 61002 Standard Quick Change Gears Set 2 10 Spline\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Performance Engineering 9in Eaton Tru Trac 3.70 Ratio 35 Spline Differential Center Section \\u2014 Ford 9in Rear End\",\"description\":\"Upgrade to the Eaton Tru Trac 3.70 ratio center section for your Ford 9in. Superior traction and durability. Shop the best performance parts at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Performance Engineering \u0026 Manufacturing\"},\"mpn\":\"CSTT35-370\",\"url\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing9in-center-section-eaton-tru-trac-3-70-ratio\",\"offers\":{\"@type\":\"Offer\",\"price\":\"1851.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing9in-center-section-eaton-tru-trac-3-70-ratio\",\"sku\":\"GSDD_CSTT35-370\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Performance Engineering \u0026 Manufacturing\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Performance+Engineering+\u0026+Manufacturing\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Performance Engineering 9in Eaton Tru Trac 3.70 Ratio 35 Spline Differential Center Section \\u2014 Ford 9in Rear End\",\"item\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing9in-center-section-eaton-tru-trac-3-70-ratio\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Performance Engineering 9in Eaton Tru Trac 3.70 Ratio 35 Spline Differential Cen fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Performance Engineering \u0026 Manufacturing?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Performance Engineering 9in Eaton Tru Trac 3.70 Ratio 35 Spline Differential Cen?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Performance Engineering \u0026 Manufacturing","offers":[{"title":"Default Title","offer_id":41120357580884,"sku":"GSDD_CSTT35-370","price":1851.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/PEMCSTT35-370.jpg?v=1717305207"},{"product_id":"performance-engineering-manufacturingford-9in-brute-36lb-diff-housing","title":"Performance Engineering \u0026 Manufacturing Brute 3.250in Bore Steel Differential Housing — Ford 9in","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Performance Engineering \u0026amp; Manufacturing\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003ePerformance Engineering \u0026amp; Manufacturing engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Performance Engineering \u0026amp; Manufacturing lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003ePerformance Engineering Ford 9in Brute Differential Housing\u003c\/h2\u003e\u003cp\u003eUpgrade your rear-end setup with the Performance Engineering \u0026amp; Manufacturing Brute Differential Housing. Engineered for high-performance applications, this Ford 9in housing is designed to handle extreme stress while maintaining precise alignment. With a 3.250-inch bore, it provides the structural integrity required for competitive racing and high-horsepower street builds.\u003c\/p\u003e\u003ch3\u003eKey Features and Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Ford 9in Rear Ends\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore Size:\u003c\/strong\u003e 3.250 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-strength steel with a natural finish\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded:\u003c\/strong\u003e Heavy-duty cap bolts for secure assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesign:\u003c\/strong\u003e Brute series for superior durability\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe Brute series housing is built to withstand the rigors of the track, offering a robust foundation for your differential components. Whether you are building a drag car or a dedicated circuit racer, this housing ensures your internal gears are protected and properly supported. The natural steel finish allows for custom painting or powder coating to match your vehicle's aesthetic. Proper fitment is essential for drivetrain longevity, and this unit is manufactured to exacting standards to ensure a seamless installation process. Experience the reliability and performance gains of professional-grade drivetrain components. For all your high-performance automotive needs, trust the selection at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Performance Engineering \u0026amp; Manufacturing products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/standard-quick-change-gears\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering 18Q Quick Change Gear Set — 10 Spline Steel\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing400-gm-slip-yoke-1310-5-50in-32-spline\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing TH400 Slip Yoke 1310 32 Spline 5.50in — Drivetrain\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing Standard Quick Change Gears 61001 10 Spline — Stee\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears-set-1q\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing 1Q Quick Change Gear Set — 10 Spline Steel Gears\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears-1\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing 61002 Standard Quick Change Gears Set 2 10 Spline\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Performance Engineering \u0026 Manufacturing Brute 3.250in Bore Steel Differential Housing \\u2014 Ford 9in\",\"description\":\"Upgrade your drivetrain with the Performance Engineering Ford 9in Brute Diff Housing. Features 3.250in bore and includes cap bolts. Shop GGCRACING today!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Performance Engineering \u0026 Manufacturing\"},\"mpn\":\"DHNI3250\",\"url\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingford-9in-brute-36lb-diff-housing\",\"offers\":{\"@type\":\"Offer\",\"price\":\"274.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingford-9in-brute-36lb-diff-housing\",\"sku\":\"GSDD_DHNI3250\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Performance Engineering \u0026 Manufacturing\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Performance+Engineering+\u0026+Manufacturing\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Performance Engineering \u0026 Manufacturing Brute 3.250in Bore Steel Differential Housing \\u2014 Ford 9in\",\"item\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingford-9in-brute-36lb-diff-housing\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Performance Engineering \u0026 Manufacturing Brute 3.250in Bore Steel Differential Ho fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Performance Engineering \u0026 Manufacturing?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Performance Engineering \u0026 Manufacturing Brute 3.250in Bore Steel Differential Ho?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Performance Engineering \u0026 Manufacturing","offers":[{"title":"Default Title","offer_id":41120372523092,"sku":"GSDD_DHNI3250","price":274.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/PEMDHNI3250.jpg?v=1717306542"},{"product_id":"strange-engineering-9in-nodular-case-3-250-bore","title":"Strange Engineering 9in Nodular Iron Case — 3.250 Bore Ford Differential","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Strange Engineering\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eStrange Engineering engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Strange Engineering lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/VPCB7hehHO0\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eUltimate Strength for Ford 9in Rear Ends\u003c\/h2\u003e\u003cp\u003eWhen building a high-performance drivetrain, the foundation must be rock solid. The Strange Engineering 9in Nodular Iron Case is engineered to provide superior rigidity and durability under extreme torque loads. Designed for drag racing and high-horsepower street applications, this case replaces weaker factory units with high-strength ductile iron.\u003c\/p\u003e\u003ch3\u003eKey Technical Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Premium Nodular Iron for maximum structural integrity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore Size:\u003c\/strong\u003e Precision-machined 3.250 inch bore\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Direct fit for Ford 9-inch rear end setups\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Hardware:\u003c\/strong\u003e Comes complete with adjuster nuts, heavy-duty bearing caps, and pinion support bolts\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis Pro Series case is the preferred choice for racers who demand reliability when launching off the line. The nodular iron construction significantly reduces case deflection, ensuring your ring and pinion gears maintain perfect alignment even under massive stress. Whether you are upgrading a classic muscle car or building a dedicated track machine, this case offers the peace of mind you need to push your vehicle to the limit. Trust your drivetrain components to the industry-leading quality found at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Strange Engineering products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/strange-engineeringadjustable-front-strut-87-93-mustang-v8\" style=\"color:#0066cc;text-decoration:none;\"\u003eStrange Engineering Adjustable Front Strut — Fits 1973-1993 Ford Mustang V8\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/strange-engineering-steel-drive-flange-wide-5-5-bolt-articulating\" style=\"color:#0066cc;text-decoration:none;\"\u003eStrange Engineering Steel Drive Flange Wide 5 5-Bolt Articulating\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/strange-engineering-axle-31-spline-30-5in-1-115in-od\" style=\"color:#0066cc;text-decoration:none;\"\u003eStrange Engineering 31-Spline Axle Shaft 30.5in 1.115in OD — Performance Racing Rear-End C\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/strange-engineering-alum-drive-flange-wide-5-5-bolt-w-steel-spl-insrt\" style=\"color:#0066cc;text-decoration:none;\"\u003eStrange Engineering Wide 5 Drive Flange 5-Bolt 24-Spline — Aluminum Racing Hub\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/strange-engineering-steel-drive-flange-wide-5-8-bolt-articulating\" style=\"color:#0066cc;text-decoration:none;\"\u003eStrange Engineering Steel Drive Flange Wide 5 8-Bolt — Articulating Racing Hub\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Strange Engineering 9in Nodular Iron Case \\u2014 3.250 Bore Ford Differential\",\"description\":\"Upgrade your drivetrain with the Strange Engineering 9in Nodular Case. Features 3.250 bore for maximum strength. Order yours today at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Strange Engineering\"},\"mpn\":\"N1906\",\"url\":\"https:\/\/ggcracing.com\/products\/strange-engineering-9in-nodular-case-3-250-bore\",\"offers\":{\"@type\":\"Offer\",\"price\":\"380.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/strange-engineering-9in-nodular-case-3-250-bore\",\"sku\":\"BJHW_N1906\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Strange Engineering\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Strange+Engineering\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Strange Engineering 9in Nodular Iron Case \\u2014 3.250 Bore Ford Differential\",\"item\":\"https:\/\/ggcracing.com\/products\/strange-engineering-9in-nodular-case-3-250-bore\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Strange Engineering 9in Nodular Iron Case \\u2014 3.250 Bore Ford Differential fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Strange Engineering?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Strange Engineering 9in Nodular Iron Case \\u2014 3.250 Bore Ford Differential?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Strange Engineering","offers":[{"title":"Default Title","offer_id":41435652390996,"sku":"BJHW_N1906","price":354.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/STGN1906.jpg?v=1721446545"},{"product_id":"strange-engineering-9in-nodular-case-3-062-bore","title":"Strange Engineering 9-Inch Nodular Iron Case — 3.062 Bore Ford Differential","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Strange Engineering\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eStrange Engineering engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Strange Engineering lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/VPCB7hehHO0\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eUltimate Strength for Ford 9-Inch Rear Ends\u003c\/h2\u003e\u003cp\u003eWhen you are pushing high horsepower, your differential case is the backbone of your drivetrain. The \u003cstrong\u003eStrange Engineering 9-inch Nodular Case\u003c\/strong\u003e is engineered for racers who demand reliability under extreme torque. Cast from high-strength ductile iron, this case provides superior resistance to deflection compared to standard housings, ensuring your ring and pinion stay perfectly aligned during aggressive launches.\u003c\/p\u003e\u003ch3\u003eKey Technical Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e3.062-Inch Bore:\u003c\/strong\u003e Precision machined for standard performance setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChromoly Caps:\u003c\/strong\u003e Includes high-strength chromoly caps for enhanced structural integrity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjuster Nuts Included:\u003c\/strong\u003e Simplifies backlash adjustment for precise gear setup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDuctile Iron Construction:\u003c\/strong\u003e Offers a significant upgrade over stock cases to prevent housing flex.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhether you are building a dedicated drag car or a high-performance street machine, this nodular case is a critical component for preventing catastrophic gear failure. The natural finish ensures a clean look while providing the rugged durability needed for track abuse. Trust your drivetrain to the industry standard in rear-end components. For all your high-performance drivetrain needs, shop the full selection of professional-grade parts at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Strange Engineering products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/strange-engineeringadjustable-front-strut-87-93-mustang-v8\" style=\"color:#0066cc;text-decoration:none;\"\u003eStrange Engineering Adjustable Front Strut — Fits 1973-1993 Ford Mustang V8\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/strange-engineering-steel-drive-flange-wide-5-5-bolt-articulating\" style=\"color:#0066cc;text-decoration:none;\"\u003eStrange Engineering Steel Drive Flange Wide 5 5-Bolt Articulating\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/strange-engineering-axle-31-spline-30-5in-1-115in-od\" style=\"color:#0066cc;text-decoration:none;\"\u003eStrange Engineering 31-Spline Axle Shaft 30.5in 1.115in OD — Performance Racing Rear-End C\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/strange-engineering-alum-drive-flange-wide-5-5-bolt-w-steel-spl-insrt\" style=\"color:#0066cc;text-decoration:none;\"\u003eStrange Engineering Wide 5 Drive Flange 5-Bolt 24-Spline — Aluminum Racing Hub\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/strange-engineering-steel-drive-flange-wide-5-8-bolt-articulating\" style=\"color:#0066cc;text-decoration:none;\"\u003eStrange Engineering Steel Drive Flange Wide 5 8-Bolt — Articulating Racing Hub\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Strange Engineering 9-Inch Nodular Iron Case \\u2014 3.062 Bore Ford Differential\",\"description\":\"Upgrade your drivetrain with the Strange Engineering 9-inch nodular iron case. Features 3.062 bore and chromoly caps for maximum durability. Buy now at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Strange Engineering\"},\"mpn\":\"N1905\",\"url\":\"https:\/\/ggcracing.com\/products\/strange-engineering-9in-nodular-case-3-062-bore\",\"offers\":{\"@type\":\"Offer\",\"price\":\"380.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/strange-engineering-9in-nodular-case-3-062-bore\",\"sku\":\"BJHW_N1905\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Strange Engineering\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Strange+Engineering\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Strange Engineering 9-Inch Nodular Iron Case \\u2014 3.062 Bore Ford Differential\",\"item\":\"https:\/\/ggcracing.com\/products\/strange-engineering-9in-nodular-case-3-062-bore\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Strange Engineering 9-Inch Nodular Iron Case \\u2014 3.062 Bore Ford Differential fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Strange Engineering?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Strange Engineering 9-Inch Nodular Iron Case \\u2014 3.062 Bore Ford Differential?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Strange Engineering","offers":[{"title":"Default Title","offer_id":41435653046356,"sku":"BJHW_N1905","price":339.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/STGN1905.jpg?v=1721446595"},{"product_id":"strange-engineering-pro-hd-alm-differential-case-kit-3-062","title":"Strange Engineering Pro HD Aluminum Differential Case Kit — 3.062 Bore","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Strange Engineering\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eStrange Engineering engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Strange Engineering lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/UTcBAuRXH_o\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eHigh-Performance Aluminum Differential Case\u003c\/h2\u003e\u003cp\u003eWhen it comes to building a high-horsepower drivetrain, the differential case is the foundation of your rear-end performance. The Strange Engineering Pro HD Aluminum Differential Case Kit is engineered to provide maximum rigidity while significantly reducing unsprung weight. Featuring a 3.062-inch bore, this case is designed to accommodate high-performance gear sets and heavy-duty components, making it the ideal choice for drag racing and high-torque applications.\u003c\/p\u003e\u003ch3\u003eWhy Choose the Pro HD Case?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight Reduction:\u003c\/strong\u003e Aluminum construction offers a substantial weight savings over traditional cast iron cases without sacrificing strength.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Rigidity:\u003c\/strong\u003e The Pro HD design minimizes case deflection under load, ensuring consistent gear contact and longer gear life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Kit:\u003c\/strong\u003e Includes necessary hardware for a straightforward installation, saving you time and sourcing effort.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Engineering:\u003c\/strong\u003e Designed specifically for the Ford 9-inch platform to ensure perfect gear alignment and bearing support.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis differential case is built to handle the intense stress of high-launch drag racing. By reducing deflection, you ensure that every ounce of power is transferred to the wheels efficiently. Whether you are building a dedicated race car or a high-performance street machine, this case provides the reliability you need. Upgrade your drivetrain today with premium components from GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Strange Engineering products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/strange-engineeringadjustable-front-strut-87-93-mustang-v8\" style=\"color:#0066cc;text-decoration:none;\"\u003eStrange Engineering Adjustable Front Strut — Fits 1973-1993 Ford Mustang V8\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/strange-engineering-steel-drive-flange-wide-5-5-bolt-articulating\" style=\"color:#0066cc;text-decoration:none;\"\u003eStrange Engineering Steel Drive Flange Wide 5 5-Bolt Articulating\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/strange-engineering-axle-31-spline-30-5in-1-115in-od\" style=\"color:#0066cc;text-decoration:none;\"\u003eStrange Engineering 31-Spline Axle Shaft 30.5in 1.115in OD — Performance Racing Rear-End C\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/strange-engineering-alum-drive-flange-wide-5-5-bolt-w-steel-spl-insrt\" style=\"color:#0066cc;text-decoration:none;\"\u003eStrange Engineering Wide 5 Drive Flange 5-Bolt 24-Spline — Aluminum Racing Hub\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/strange-engineering-steel-drive-flange-wide-5-8-bolt-articulating\" style=\"color:#0066cc;text-decoration:none;\"\u003eStrange Engineering Steel Drive Flange Wide 5 8-Bolt — Articulating Racing Hub\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Strange Engineering Pro HD Aluminum Differential Case Kit \\u2014 3.062 Bore\",\"description\":\"Upgrade to the Strange Engineering Pro HD Aluminum Differential Case. 3.062 bore for Ford 9 inch rears. High-strength performance. Shop GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Strange Engineering\"},\"mpn\":\"P3200\",\"url\":\"https:\/\/ggcracing.com\/products\/strange-engineering-pro-hd-alm-differential-case-kit-3-062\",\"offers\":{\"@type\":\"Offer\",\"price\":\"952.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/strange-engineering-pro-hd-alm-differential-case-kit-3-062\",\"sku\":\"BJHW_P3200\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Strange Engineering\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Strange+Engineering\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Strange Engineering Pro HD Aluminum Differential Case Kit \\u2014 3.062 Bore\",\"item\":\"https:\/\/ggcracing.com\/products\/strange-engineering-pro-hd-alm-differential-case-kit-3-062\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Strange Engineering Pro HD Aluminum Differential Case Kit \\u2014 3.062 Bore fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Strange Engineering?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Strange Engineering Pro HD Aluminum Differential Case Kit \\u2014 3.062 Bore?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Strange Engineering","offers":[{"title":"Default Title","offer_id":41435660877908,"sku":"BJHW_P3200","price":939.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/STGP3200.jpg?v=1721446846"},{"product_id":"strange-engineering-hd-pro-alm-differential-case-kit-3-250-ford-9in","title":"Strange Engineering P3203BB Pro Aluminum Differential Case — Ford 9in","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Strange Engineering\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eStrange Engineering engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Strange Engineering lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eUltimate Strength: Strange HD Pro Aluminum Differential Case\u003c\/h2\u003e\u003cp\u003eThe Strange Engineering P3203BB HD Pro Aluminum Differential Case is the gold standard for Ford 9-inch rear-end builds. Designed for racers who demand weight reduction without sacrificing structural integrity, this aluminum case offers superior thermal dissipation and rigid support for your ring and pinion set. With a 3.250-inch bore, it is perfectly suited for high-performance applications where precision and durability are non-negotiable.\u003c\/p\u003e\u003ch3\u003eKit Includes:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHD Pro Aluminum Case (3.250 inch bore)\u003c\/li\u003e\n\u003cli\u003ePrecision Depth Shims\u003c\/li\u003e\n\u003cli\u003eHeavy-Duty Retainer Plate\u003c\/li\u003e\n\u003cli\u003eAdjuster Nuts\u003c\/li\u003e\n\u003cli\u003ePinion Support Bolts\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis comprehensive kit simplifies the installation process by providing all the necessary hardware to secure your differential assembly. The natural finish aluminum construction is lightweight, helping to decrease unsprung weight, which translates to better suspension response and improved track performance. Whether you are building a dedicated drag car or a high-end street machine, the Strange Pro Case provides the foundation needed to handle significant horsepower. Experience the difference of premium drivetrain engineering with this essential upgrade. For expert advice and the best selection of performance parts, visit GGCRACING today.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Strange Engineering products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/strange-engineeringadjustable-front-strut-87-93-mustang-v8\" style=\"color:#0066cc;text-decoration:none;\"\u003eStrange Engineering Adjustable Front Strut — Fits 1973-1993 Ford Mustang V8\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/strange-engineering-steel-drive-flange-wide-5-5-bolt-articulating\" style=\"color:#0066cc;text-decoration:none;\"\u003eStrange Engineering Steel Drive Flange Wide 5 5-Bolt Articulating\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/strange-engineering-axle-31-spline-30-5in-1-115in-od\" style=\"color:#0066cc;text-decoration:none;\"\u003eStrange Engineering 31-Spline Axle Shaft 30.5in 1.115in OD — Performance Racing Rear-End C\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/strange-engineering-alum-drive-flange-wide-5-5-bolt-w-steel-spl-insrt\" style=\"color:#0066cc;text-decoration:none;\"\u003eStrange Engineering Wide 5 Drive Flange 5-Bolt 24-Spline — Aluminum Racing Hub\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/strange-engineering-steel-drive-flange-wide-5-8-bolt-articulating\" style=\"color:#0066cc;text-decoration:none;\"\u003eStrange Engineering Steel Drive Flange Wide 5 8-Bolt — Articulating Racing Hub\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Strange Engineering P3203BB Pro Aluminum Differential Case \\u2014 Ford 9in\",\"description\":\"Upgrade to the Strange Engineering HD Pro Aluminum Differential Case for Ford 9in rears. 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At GGCRACING we stock the full Strange Engineering lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eHigh-Performance Ford 9-Inch Differential Case\u003c\/h2\u003e\u003cp\u003eThe Strange Engineering S-Series Nodular Iron Case is engineered for racers and high-horsepower street builds requiring maximum durability. Designed specifically for the Ford 9-inch rear end, this case features a 3.062-inch bore to accommodate heavy-duty gear sets and high-torque applications. The nodular iron construction provides exceptional resistance to deflection under extreme load, ensuring your ring and pinion stay perfectly aligned during hard launches.\u003c\/p\u003e\u003ch3\u003eKey Features and Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-strength ductile nodular iron for maximum impact resistance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Bore:\u003c\/strong\u003e 3.062-inch diameter for precise bearing fitment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Kit:\u003c\/strong\u003e Includes heavy-duty ductile iron caps and adjuster nuts for a secure setup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurability:\u003c\/strong\u003e Engineered to withstand the rigors of drag racing and high-performance street use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Direct fit for standard Ford 9-inch housing configurations.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhen building a bulletproof rear end, the differential case is the foundation of your drivetrain. By choosing this Strange Engineering unit, you are investing in a component that minimizes gear wear and maximizes power transfer to the pavement. Whether you are upgrading from a stock carrier or building a custom racing rear end, this case offers the reliability you need. For premium drivetrain components and expert advice, trust the selection at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Strange Engineering products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/strange-engineeringadjustable-front-strut-87-93-mustang-v8\" style=\"color:#0066cc;text-decoration:none;\"\u003eStrange Engineering Adjustable Front Strut — Fits 1973-1993 Ford Mustang V8\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/strange-engineering-steel-drive-flange-wide-5-5-bolt-articulating\" style=\"color:#0066cc;text-decoration:none;\"\u003eStrange Engineering Steel Drive Flange Wide 5 5-Bolt Articulating\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/strange-engineering-axle-31-spline-30-5in-1-115in-od\" style=\"color:#0066cc;text-decoration:none;\"\u003eStrange Engineering 31-Spline Axle Shaft 30.5in 1.115in OD — Performance Racing Rear-End C\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/strange-engineering-alum-drive-flange-wide-5-5-bolt-w-steel-spl-insrt\" style=\"color:#0066cc;text-decoration:none;\"\u003eStrange Engineering Wide 5 Drive Flange 5-Bolt 24-Spline — Aluminum Racing Hub\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/strange-engineering-steel-drive-flange-wide-5-8-bolt-articulating\" style=\"color:#0066cc;text-decoration:none;\"\u003eStrange Engineering Steel Drive Flange Wide 5 8-Bolt — Articulating Racing Hub\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Strange Engineering S-Series Nodular Iron Case 3.062 Bore \\u2014 Ford 9-Inch Rear End\",\"description\":\"Upgrade your Ford 9-inch rear end with the Strange Engineering S-Series Nodular Iron Case. Features 3.062-inch bore for superior strength. Shop now!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Strange Engineering\"},\"mpn\":\"N2205\",\"url\":\"https:\/\/ggcracing.com\/products\/strange-engineering-9in-nodular-case-3-062-bore-1\",\"offers\":{\"@type\":\"Offer\",\"price\":\"297.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/strange-engineering-9in-nodular-case-3-062-bore-1\",\"sku\":\"BJHW_N2205\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Strange Engineering\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Strange+Engineering\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Strange Engineering S-Series Nodular Iron Case 3.062 Bore \\u2014 Ford 9-Inch Rear End\",\"item\":\"https:\/\/ggcracing.com\/products\/strange-engineering-9in-nodular-case-3-062-bore-1\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Strange Engineering S-Series Nodular Iron Case 3.062 Bore \\u2014 Ford 9-Inch Rear End fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Strange Engineering?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Strange Engineering S-Series Nodular Iron Case 3.062 Bore \\u2014 Ford 9-Inch Rear End?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Strange Engineering","offers":[{"title":"Default Title","offer_id":41435666808916,"sku":"BJHW_N2205","price":271.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/STGN2205.jpg?v=1721447088"},{"product_id":"strange-engineering-9in-nodular-case-3-250-bore-1","title":"Strange Engineering Ford 9in Nodular Case — 3.250in Bore S-Series","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Strange Engineering\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eStrange Engineering engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Strange Engineering lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/VPCB7hehHO0\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eUnmatched Strength for Ford 9-Inch\u003c\/h2\u003e\u003cp\u003eThe Strange Engineering S-Series Nodular Case is the foundation of a high-performance drivetrain. Constructed from premium ductile iron, this case is engineered to handle the massive torque loads generated by high-horsepower engines. With a 3.250-inch bore, it provides the structural rigidity required to keep your ring and pinion gears perfectly aligned, preventing deflection that leads to premature gear failure.\u003c\/p\u003e\u003ch3\u003eFeatures of the S-Series Case\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDurable ductile iron construction\u003c\/li\u003e\n\u003cli\u003eIncludes adjuster nuts for precise backlash setup\u003c\/li\u003e\n\u003cli\u003eHigh-strength ductile iron caps for added support\u003c\/li\u003e\n\u003cli\u003e3.250-inch bore diameter\u003c\/li\u003e\n\u003cli\u003eNatural finish for a clean, professional look\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis case is the ideal choice for drag racing, street\/strip builds, and off-road applications where reliability is non-negotiable. The included ductile iron caps and adjuster nuts ensure that your differential assembly is secure and easy to service. By upgrading to a Strange Nodular Case, you are significantly increasing the torque capacity of your Ford 9-inch rear end, allowing you to push your vehicle to the limit with confidence. Find the best in drivetrain engineering at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Strange Engineering products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/strange-engineeringadjustable-front-strut-87-93-mustang-v8\" style=\"color:#0066cc;text-decoration:none;\"\u003eStrange Engineering Adjustable Front Strut — Fits 1973-1993 Ford Mustang V8\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/strange-engineering-steel-drive-flange-wide-5-5-bolt-articulating\" style=\"color:#0066cc;text-decoration:none;\"\u003eStrange Engineering Steel Drive Flange Wide 5 5-Bolt Articulating\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/strange-engineering-axle-31-spline-30-5in-1-115in-od\" style=\"color:#0066cc;text-decoration:none;\"\u003eStrange Engineering 31-Spline Axle Shaft 30.5in 1.115in OD — Performance Racing Rear-End C\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/strange-engineering-alum-drive-flange-wide-5-5-bolt-w-steel-spl-insrt\" style=\"color:#0066cc;text-decoration:none;\"\u003eStrange Engineering Wide 5 Drive Flange 5-Bolt 24-Spline — Aluminum Racing Hub\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/strange-engineering-steel-drive-flange-wide-5-8-bolt-articulating\" style=\"color:#0066cc;text-decoration:none;\"\u003eStrange Engineering Steel Drive Flange Wide 5 8-Bolt — Articulating Racing Hub\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Strange Engineering Ford 9in Nodular Case \\u2014 3.250in Bore S-Series\",\"description\":\"Build a bulletproof rear end with the Strange Engineering 9in Nodular Case. 3.250in bore, ductile iron strength. 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Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Strange Engineering?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Strange Engineering Ford 9in Nodular Case \\u2014 3.250in Bore S-Series?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Strange Engineering","offers":[{"title":"Default Title","offer_id":41435669561428,"sku":"BJHW_N2206","price":281.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/STGN2206.jpg?v=1721447164"},{"product_id":"strange-engineering-hd-alum-pro-3-250in-case-kit-w-tapered-support","title":"Strange Engineering HD Aluminum Pro 3.250in Case Kit — Fits Ford 9in Rear Ends","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Strange Engineering\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eStrange Engineering engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Strange Engineering lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eHeavy Duty Performance for Ford 9-Inch Rear Ends\u003c\/h2\u003e\u003cp\u003eUpgrade your drivetrain with the Strange Engineering HD Aluminum Pro 3.250in Case Kit. Engineered for high-horsepower applications, this differential case provides the structural integrity needed to handle extreme torque and track conditions. Crafted from high-grade aluminum, this kit offers a significant weight reduction over stock cast iron housings without sacrificing strength.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore Size:\u003c\/strong\u003e 3.250 inches for high-performance pinion support.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Lightweight, high-strength aluminum construction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for Ford 9-inch and 9-1\/2-inch rear end configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Kit:\u003c\/strong\u003e Includes depth shims, retainer plate, adjuster nuts, and heavy-duty pinion support bolts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTapered Support:\u003c\/strong\u003e Features integrated tapered support for enhanced pinion stability.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis case is the gold standard for drag racing and high-performance street builds. Its precision machining ensures perfect gear mesh, reducing friction and heat buildup during intense launches. Whether you are building a dedicated race car or a high-performance street machine, this Strange Engineering component is designed to withstand the rigors of the strip. Trust in the reliability of professional-grade drivetrain components from GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Strange Engineering products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/strange-engineeringadjustable-front-strut-87-93-mustang-v8\" style=\"color:#0066cc;text-decoration:none;\"\u003eStrange Engineering Adjustable Front Strut — Fits 1973-1993 Ford Mustang V8\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/strange-engineering-steel-drive-flange-wide-5-5-bolt-articulating\" style=\"color:#0066cc;text-decoration:none;\"\u003eStrange Engineering Steel Drive Flange Wide 5 5-Bolt Articulating\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/strange-engineering-axle-31-spline-30-5in-1-115in-od\" style=\"color:#0066cc;text-decoration:none;\"\u003eStrange Engineering 31-Spline Axle Shaft 30.5in 1.115in OD — Performance Racing Rear-End C\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/strange-engineering-alum-drive-flange-wide-5-5-bolt-w-steel-spl-insrt\" style=\"color:#0066cc;text-decoration:none;\"\u003eStrange Engineering Wide 5 Drive Flange 5-Bolt 24-Spline — Aluminum Racing Hub\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/strange-engineering-steel-drive-flange-wide-5-8-bolt-articulating\" style=\"color:#0066cc;text-decoration:none;\"\u003eStrange Engineering Steel Drive Flange Wide 5 8-Bolt — Articulating Racing Hub\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Strange Engineering HD Aluminum Pro 3.250in Case Kit \\u2014 Fits Ford 9in Rear Ends\",\"description\":\"Upgrade your drivetrain with the Strange Engineering HD Aluminum Pro 3.250in Case Kit. High-strength, precision-fit for Ford 9in. Order from GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Strange Engineering\"},\"mpn\":\"P3203\",\"url\":\"https:\/\/ggcracing.com\/products\/strange-engineering-hd-alum-pro-3-250in-case-kit-w-tapered-support\",\"offers\":{\"@type\":\"Offer\",\"price\":\"952.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/strange-engineering-hd-alum-pro-3-250in-case-kit-w-tapered-support\",\"sku\":\"BJHW_P3203\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Strange Engineering\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Strange+Engineering\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Strange Engineering HD Aluminum Pro 3.250in Case Kit \\u2014 Fits Ford 9in Rear Ends\",\"item\":\"https:\/\/ggcracing.com\/products\/strange-engineering-hd-alum-pro-3-250in-case-kit-w-tapered-support\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Strange Engineering HD Aluminum Pro 3.250in Case Kit \\u2014 Fits Ford 9in Rear Ends fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Strange Engineering?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Strange Engineering HD Aluminum Pro 3.250in Case Kit \\u2014 Fits Ford 9in Rear Ends?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Strange Engineering","offers":[{"title":"Default Title","offer_id":41435710226516,"sku":"BJHW_P3203","price":952.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/STGP3203.jpg?v=1721447929"},{"product_id":"performance-engineering-manufacturing-new-center-section-fs-lw-583-ratio-31-spline","title":"Performance Engineering \u0026 Manufacturing 5.83 Ratio 31 Spline Center Section — Ford 9 in","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Performance Engineering \u0026amp; Manufacturing\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003ePerformance Engineering \u0026amp; Manufacturing engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Performance Engineering \u0026amp; Manufacturing lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/TWJxTSVp45M\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eHigh-Performance Differential Center Section\u003c\/h2\u003e\u003cp\u003eEngineered for maximum durability and precision, the Performance Engineering \u0026amp; Manufacturing Center Section is the ultimate upgrade for your Ford 9-inch rear end. Designed specifically for high-torque applications, this assembled unit features a 5.83 gear ratio and a robust 31-spline steel spool, ensuring consistent power delivery to the wheels.\u003c\/p\u003e\u003ch3\u003eKey Technical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRatio:\u003c\/strong\u003e 5.83 for optimized acceleration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpline Count:\u003c\/strong\u003e 31-spline compatibility\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e Lightweight steel spool for reduced rotating mass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Standard Ford 9-inch housings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Fully assembled and ready for installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhether you are building a dedicated drag car or a high-performance street machine, this differential case provides the structural integrity required to handle extreme stress. The lightweight design helps improve vehicle response, while the precision-machined components minimize friction and wear during intense racing conditions. Each unit is built to exacting standards to ensure perfect gear mesh and long-term reliability. Trust the engineering expertise behind this component to keep your drivetrain performing at its peak. Upgrade your rear-end setup today with this premium solution from GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Performance Engineering \u0026amp; Manufacturing products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/standard-quick-change-gears\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering 18Q Quick Change Gear Set — 10 Spline Steel\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing400-gm-slip-yoke-1310-5-50in-32-spline\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing TH400 Slip Yoke 1310 32 Spline 5.50in — Drivetrain\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing Standard Quick Change Gears 61001 10 Spline — Stee\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears-set-1q\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing 1Q Quick Change Gear Set — 10 Spline Steel Gears\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears-1\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing 61002 Standard Quick Change Gears Set 2 10 Spline\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Performance Engineering \u0026 Manufacturing 5.83 Ratio 31 Spline Center Section \\u2014 Ford 9 in\",\"description\":\"Upgrade your drivetrain with the Performance Engineering 5.83 Ratio 31 Spline Center Section. Built for Ford 9 inch axles. Shop high-performance parts now.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Performance Engineering \u0026 Manufacturing\"},\"mpn\":\"CSFS58331LW\",\"url\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing-new-center-section-fs-lw-583-ratio-31-spline\",\"offers\":{\"@type\":\"Offer\",\"price\":\"766.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing-new-center-section-fs-lw-583-ratio-31-spline\",\"sku\":\"GSDD_CSFS58331LW\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Performance Engineering \u0026 Manufacturing\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Performance+Engineering+\u0026+Manufacturing\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Performance Engineering \u0026 Manufacturing 5.83 Ratio 31 Spline Center Section \\u2014 Ford 9 in\",\"item\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing-new-center-section-fs-lw-583-ratio-31-spline\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Performance Engineering \u0026 Manufacturing 5.83 Ratio 31 Spline Center Section \\u2014 Fo fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Performance Engineering \u0026 Manufacturing?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Performance Engineering \u0026 Manufacturing 5.83 Ratio 31 Spline Center Section \\u2014 Fo?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Performance Engineering \u0026 Manufacturing","offers":[{"title":"Default Title","offer_id":41448017035348,"sku":"GSDD_CSFS58331LW","price":767.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/PEMCSFS58331LW.jpg?v=1721586815"},{"product_id":"performance-engineering-manufacturing-new-center-section-fs-lw-650-ratio-31-spline","title":"Performance Engineering \u0026 Manufacturing 6.50 Ratio 31 Spline Center Section — Ford 9 in","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Performance Engineering \u0026amp; Manufacturing\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003ePerformance Engineering \u0026amp; Manufacturing engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Performance Engineering \u0026amp; Manufacturing lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/ZR_ug9SecjU\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eLightweight Differential Center Section\u003c\/h2\u003e\u003cp\u003eThe Performance Engineering \u0026amp; Manufacturing 6.50 Ratio 31-Spline Center Section is engineered for racers who demand the absolute best in drivetrain efficiency. Featuring a specialized lightweight design, this unit is built to reduce parasitic power loss, allowing more of your engine's power to reach the pavement. It is the ideal choice for Ford 9-inch rear ends where every ounce counts.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRatio:\u003c\/strong\u003e 6.50 for specialized racing applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpline Count:\u003c\/strong\u003e 31-spline for high-strength engagement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesign:\u003c\/strong\u003e Lightweight steel spool construction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Natural finish, precision-machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Fits standard Ford 9-inch rear-end housings\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis assembled differential case is more than just a gear set; it is a performance-enhancing component designed to withstand the rigors of competitive motorsports. By utilizing a lightweight steel spool, this center section minimizes rotating mass, which translates to faster acceleration and improved vehicle agility. Each component is manufactured with tight tolerances to ensure smooth operation and maximum durability under high-load conditions. Whether you are competing in drag racing or other high-performance events, this center section provides the reliability and performance edge you need to stay ahead of the competition. Elevate your drivetrain performance today with this premium part from GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Performance Engineering \u0026amp; Manufacturing products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/standard-quick-change-gears\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering 18Q Quick Change Gear Set — 10 Spline Steel\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing400-gm-slip-yoke-1310-5-50in-32-spline\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing TH400 Slip Yoke 1310 32 Spline 5.50in — Drivetrain\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing Standard Quick Change Gears 61001 10 Spline — Stee\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears-set-1q\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing 1Q Quick Change Gear Set — 10 Spline Steel Gears\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears-1\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing 61002 Standard Quick Change Gears Set 2 10 Spline\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Performance Engineering \u0026 Manufacturing 6.50 Ratio 31 Spline Center Section \\u2014 Ford 9 in\",\"description\":\"Get precision performance with the Performance Engineering 6.50 Ratio 31 Spline Center Section for Ford 9 inch. 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Order at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Performance Engineering \u0026 Manufacturing\"},\"mpn\":\"CSFS65031LW\",\"url\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing-new-center-section-fs-lw-650-ratio-31-spline\",\"offers\":{\"@type\":\"Offer\",\"price\":\"766.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing-new-center-section-fs-lw-650-ratio-31-spline\",\"sku\":\"GSDD_CSFS65031LW\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Performance Engineering \u0026 Manufacturing\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Performance+Engineering+\u0026+Manufacturing\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Performance Engineering \u0026 Manufacturing 6.50 Ratio 31 Spline Center Section \\u2014 Ford 9 in\",\"item\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing-new-center-section-fs-lw-650-ratio-31-spline\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Performance Engineering \u0026 Manufacturing 6.50 Ratio 31 Spline Center Section \\u2014 Fo fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Performance Engineering \u0026 Manufacturing?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Performance Engineering \u0026 Manufacturing 6.50 Ratio 31 Spline Center Section \\u2014 Fo?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Performance Engineering \u0026 Manufacturing","offers":[{"title":"Default Title","offer_id":41448017690708,"sku":"GSDD_CSFS65031LW","price":767.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/PEMCSFS65031LW.jpg?v=1721586823"},{"product_id":"performance-engineering-manufacturing-new-center-section-ms-5-67-31-spline-1310","title":"Performance Engineering \u0026 Manufacturing Center Section 5.67 Ratio 31 Spline — Fits Ford 9 in","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Performance Engineering \u0026amp; Manufacturing\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003ePerformance Engineering \u0026amp; Manufacturing engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Performance Engineering \u0026amp; Manufacturing lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003ePerformance Engineering \u0026amp; Manufacturing Ford 9\" Center Section\u003c\/h2\u003e\u003cp\u003eUpgrade your drivetrain with the precision-engineered Performance Engineering \u0026amp; Manufacturing (PEM) center section. Designed specifically for the iconic Ford 9-inch rear end, this unit is built to handle high-torque applications with ease. Whether you are building a dedicated drag car or a high-performance street machine, this assembled differential case provides the reliability and consistency you demand.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRatio:\u003c\/strong\u003e 5.67\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpline Count:\u003c\/strong\u003e 31\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e High-strength steel spool\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Natural\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Ford 9-inch rear ends\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eEach unit comes fully assembled, ensuring proper gear mesh and minimizing installation time. The 31-spline design offers an excellent balance of strength and weight, making it a popular choice for serious enthusiasts. The steel spool construction ensures that power is delivered directly to the wheels without the internal friction or failure points found in standard differential carriers. At GGCRACING, we prioritize quality components that help you achieve faster track times and improved vehicle handling. Invest in a center section that is built to last and engineered for maximum power transfer.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Performance Engineering \u0026amp; Manufacturing products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/standard-quick-change-gears\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering 18Q Quick Change Gear Set — 10 Spline Steel\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing400-gm-slip-yoke-1310-5-50in-32-spline\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing TH400 Slip Yoke 1310 32 Spline 5.50in — Drivetrain\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing Standard Quick Change Gears 61001 10 Spline — Stee\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears-set-1q\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing 1Q Quick Change Gear Set — 10 Spline Steel Gears\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears-1\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing 61002 Standard Quick Change Gears Set 2 10 Spline\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Performance Engineering \u0026 Manufacturing Center Section 5.67 Ratio 31 Spline \\u2014 Fits Ford 9 in\",\"description\":\"Upgrade your Ford 9 inch rear end with this assembled 5.67 ratio, 31-spline center section. 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Shop high-performance parts now.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Performance Engineering \u0026 Manufacturing\"},\"mpn\":\"CSMS56731\",\"url\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing-new-center-section-ms-5-67-31-spline-1310\",\"offers\":{\"@type\":\"Offer\",\"price\":\"612.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing-new-center-section-ms-5-67-31-spline-1310\",\"sku\":\"GSDD_CSMS56731\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Performance Engineering \u0026 Manufacturing\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Performance+Engineering+\u0026+Manufacturing\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Performance Engineering \u0026 Manufacturing Center Section 5.67 Ratio 31 Spline \\u2014 Fits Ford 9 in\",\"item\":\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing-new-center-section-ms-5-67-31-spline-1310\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Performance Engineering \u0026 Manufacturing Center Section 5.67 Ratio 31 Spline \\u2014 Fi fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. 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At GGCRACING we stock the full Performance Engineering \u0026amp; Manufacturing lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003ePerformance Engineering \u0026amp; Manufacturing Ford 9\" Center Section\u003c\/h2\u003e\u003cp\u003eMaximize your vehicle's acceleration and power delivery with the Performance Engineering \u0026amp; Manufacturing (PEM) 5.83 ratio center section. This unit is the perfect upgrade for Ford 9-inch rear ends, providing the aggressive gearing needed for competitive drag racing or high-performance builds. Assembled with precision and care, this center section is designed to handle the stresses of high-torque environments, ensuring your vehicle performs at its peak every time you hit the track.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRatio:\u003c\/strong\u003e 5.83\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpline Count:\u003c\/strong\u003e 31\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e Heavy-duty steel spool\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Natural\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Ford 9-inch rear end\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe 5.83 gear ratio is ideal for enthusiasts looking for quick off-the-line performance. By utilizing a 31-spline steel spool, this unit eliminates the weak points associated with traditional differential carriers, providing a solid, reliable connection between your axles. Each unit is fully assembled, saving you time and ensuring that all internal components are properly set for maximum longevity. Whether you are upgrading an existing race car or building a new one, this PEM center section offers the durability and performance you need to stay ahead of the competition. GGCRACING is dedicated to providing top-tier drivetrain components that help you achieve your performance goals. Invest in quality and experience the difference in your vehicle's drivetrain efficiency.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Performance Engineering \u0026amp; Manufacturing products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/standard-quick-change-gears\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering 18Q Quick Change Gear Set — 10 Spline Steel\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturing400-gm-slip-yoke-1310-5-50in-32-spline\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing TH400 Slip Yoke 1310 32 Spline 5.50in — Drivetrain\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing Standard Quick Change Gears 61001 10 Spline — Stee\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears-set-1q\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing 1Q Quick Change Gear Set — 10 Spline Steel Gears\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-engineering-manufacturingstandard-quick-change-gears-1\" style=\"color:#0066cc;text-decoration:none;\"\u003ePerformance Engineering \u0026amp; Manufacturing 61002 Standard Quick Change Gears Set 2 10 Spline\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Performance Engineering \u0026 Manufacturing Center Section 5.83 Ratio 31 Spline \\u2014 Fits Ford 9 in\",\"description\":\"Upgrade your Ford 9 inch rear end with the Performance Engineering 5.83 ratio, 31-spline center section. 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