The Eaton Detroit Truetrac is a helical gear-driven limited-slip differential that puts down the traction that's available while keeping handling smooth and predictable. It reacts automatically, works quietly, and needs no maintenance, which makes it a good street, tow, and trail upgrade for drivers who want gains without the on/off behavior of a locker. This unit is configured for the Chrysler 8.75in axle.
- Type: Helical gear limited-slip (Detroit Truetrac)
- Axle: Chrysler 8.75in
- Ring gear diameter: 8.75in
- Axle shaft diameter: 1.28in
- Spline count: 30-spline
- Gear ratio: 2.76 to 4.56
- Part number: 913A572
Axle Fitment
- This unit is built for the Chrysler 8.75in axle (30-spline, 8.75in ring gear, 2.76 to 4.56 ratios). It is found in Mopar 8.75in rear axles. Confirm your axle and spline count.
FAQ
What does the Eaton Detroit Truetrac do?
It is a helical gear limited-slip that sends torque to the wheel with grip automatically, with no maintenance and no on/off locking.
Which axle and spline count does part number 913A572 fit?
It fits the Chrysler 8.75in axle, 30-spline, 8.75in ring gear, 2.76 to 4.56. Confirm your axle and spline count before ordering.
Does the Detroit Truetrac need maintenance?
No. The helical gear design works automatically and needs no clutches, additives, or routine service.
Is it good for street driving?
Yes. It operates quietly and smoothly and suits street, tow, and trail use.
