{"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":"\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","brand":"Performance Engineering \u0026 Manufacturing","offers":[{"title":"Default Title","offer_id":41120357056596,"sku":"GSDD_CSFS37031","price":718.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/PEMCSFS37031.jpg?v=1717305097","url":"https:\/\/ggcracing.com\/en-co\/products\/performance-engineering-manufacturing9in-gear-full-spool-3-70-ratio-new-center-31","provider":"GGCRACING INC","version":"1.0","type":"link"}