Product details:

10-Bolt 31-Spline All Gear Ratios 4-Spring, Clutch Style Fully Rebuildable Includes Exclusive JEGS Yellow Spring Pack JEGS 555-62816 Posi Traction Differential Features: Fits Ford 8.8 in. 10-bolt differentials with 31-spline rear axles Combines an exclusive JEGS yellow 4-spring pack and Raybestos composite clutches for better traction and more controlled power transfer Fully rebuildable and assembled with state-of-the-art technology and real-world testing for superior control on the road For all ring and pinion gear ratios Made in the USA with high-quality components and assembly JEGS 555-62816 Posi Traction Differential Notes: This Posi Traction Differential for Ford 8.800 in. will not work with JEGS 555-62611 1979-1993 Mustang, 31-Spline, 4-Lug Axle Kit Technical Note: JEGS recommends using high-grade Non-Synthetic GL-5 gear oil 555-28054 and LSD (Limited-Slip Differential) additive 555-60120 for smooth operation and long life. The use of Synthetic oil is not recommended and may result in noisy or aggressive operation.

• COMBINES an exclusive JEGS Yellow 4-Spring Pack and Raybestos composite clutches for better traction and more controlled power transfer
• FULLY-REBUILDABLE and assembled with state-of-the-art technology and real-world testing for superior control on the road
• FOR all ring and pinion gear ratios
• MADE IN USA with high quality components and assembly