The Eaton Detroit Truetrac is a helical gear-driven limited-slip differential that puts the most available traction to the ground while sharpening handling and everyday drivability. It works automatically and smoothly with no maintenance, so it suits street, tow, and trail use. Unlike an on/off locker it stays quiet and predictable, which makes it a popular full-time traction upgrade for the GM 9.5in/9.76in axle.
- Type: Helical gear limited-slip differential
- Axle: GM 9.5in/9.76in
- Ring gear diameter: 9.5in/9.76in
- Spline count: 33
- Gear ratio: 3.42 & up
- No maintenance or friction additive required
- Part number: 917A732
Axle Fitment
- Fits the GM 9.5in/9.76in 33-spline axle (3.42 and up ratios) used in 2014-current GM 1500 pickups. Confirm your axle and spline count.
FAQ
What is a Detroit Truetrac?
It is a helical gear limited-slip differential that automatically sends torque to the wheel with grip. It works quietly with no clutches to wear out and needs no maintenance.
What axle does part 917A732 fit?
It fits the GM 9.5in/9.76in axle with a 33-spline count. Confirm your axle model and spline count before ordering.
Does the Truetrac require any maintenance or special additive?
No. The gear-driven design needs no friction modifier additive and no periodic service.
What gear ratios does it work with?
This unit is built for 3.42 & up ratios on this axle.
