Eaton Model : 917A732
Application: 12 Bolt 9.5" / 9.76" (2014 and newer GM Truck)
Axle Shafts: 33 spline
Gear Ratios: 3.42 & 3.73
Notes: Factory differential cover oil drain plug may need shortened by approximately 1/8 in. to maintain clearance with the differential.
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