GM8.5"/8.6" 10 bolt Eaton TrueTrac 913A481

The Eaton Detroit Truetrac is a worm gear style differential that provides constant power to both wheels while allowing for wheel speed differentiation. The design of these units works so well, the US military chose this type of unit as standard equipment on the Hummer H1.

Eaton Model : 913A481

Application: GM 8.5" 10 Bolt

Axle Shafts: 30 spline c-clip

Gear Ratios: 2.73 and up