Our most popular upgrade kit for 1988-2013 Chevrolet 1500 Trucks w/ 10 Bolt 8.5"/8.6".Most complete kit to upgrade your entire rear axle for high horsepower and torque!

Package Includes:

(1) 913A481 Detroit Truetrac Posi GM 10 Bolt 8.5" 30 Spline
(1) Innovation Gear GM 10 Bolt 8.6" 3.42 Ratio Face-Hob Style **Made in Italy**
(1) Premium Master Bearing Kit **Made in USA**
(1) Premium Wheel Bearings and Seal **Made in USA**

Note: Fits both 4WD and 2WD models but if you have a 4WD and changing ratio's make sure to buy a matching front gear set.