{"product_id":"performance-engineering-manufacturingpremium-quick-change-gears-35","title":"Performance Engineering \u0026 Manufacturing Premium Quick Change Gear Set 31 — 10 Spline Steel","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\u003eDominate the Track with PEM Premium Quick Change Gear Set 31\u003c\/h2\u003e\u003cp\u003eOptimize your vehicle's power delivery and adaptability with the Performance Engineering \u0026amp; Manufacturing (PEM) Premium Quick Change Gear Set 31. This high-performance gear set is engineered for serious racers, enabling swift and precise ratio adjustments to perfectly match track conditions and driving styles. Constructed from premium-grade steel, these gears offer exceptional strength and resilience, ensuring maximum durability under the most demanding racing environments.\u003c\/p\u003e\u003ch3\u003eEngineered for Maximum Efficiency and Durability\u003c\/h3\u003e\u003cp\u003eThe Set 31 features a robust 10-spline design, providing a secure and efficient connection within your quick change differential. Each gear is meticulously machined to exacting specifications, minimizing power loss due to friction and maximizing the transfer of engine torque to the wheels. This precision engineering results in superior acceleration, improved cornering exit speeds, and overall enhanced vehicle control on the track.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial:\u003c\/b\u003e High-Grade Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSpline Count:\u003c\/b\u003e 10 Spline\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRatio (4.11):\u003c\/b\u003e 6.85 \/ 2.47\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRatio (4.86):\u003c\/b\u003e 8.10 \/ 2.92\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBenefit:\u003c\/b\u003e Enhanced Drivetrain Performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eThe Unrivaled Quality of PEM\u003c\/h3\u003e\u003cp\u003ePEM is a leader in high-performance automotive components, and the Premium Quick Change Gear Set 31 is a testament to their commitment to quality and innovation. These gears are designed to withstand the rigors of competitive racing, offering superior wear resistance and consistent performance lap after lap. For those who demand the best in quick change differential components, PEM delivers the reliability and performance needed to win. Elevate your racing experience with PEM, available 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 Premium Quick Change Gear Set 31 \\u2014 10 Spline Steel\",\"description\":\"Upgrade your quick change differential with PEM Premium Quick Change Gear Set 31. Robust 10-spline steel for ultimate racing durability. 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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 Premium Quick Change Gear Set 31 \\u2014 10 Sp?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. 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