The Detroit Truetrac limited-slip differential is a helical-gear, maintenance-free unit that maximizes traction and improves handling by automatically biasing torque between wheels. Specified as a 29-spline unit with a 1.21-inch axle shaft diameter for 2.73-and-up ring gear ratios and rear 8.375-inch housings, it provides smooth, quiet operation in both forward and reverse for many vehicle applications.
Eaton Detroit Truetrac Differential 29 Spline 1.21in Axle Shaft Dia 2.73 & Up Ratio Rear 8.375in