The Eaton Detroit Truetrac is a helical gear-driven limited-slip differential that automatically sends torque to the wheel with the most traction, sharpening handling and drivability without the on/off behavior of a locker. It operates smoothly and quietly, needs no maintenance, and suits street, tow, and trail use.
- Type: Helical gear limited-slip differential
- Axle: Dana 60 HD
- Ring gear: 9.75in
- Axle shaft diameter: 1.50in
- Spline count: 35
- Gear ratio: 4.56 and up
- Part number: 915A386
Axle Fitment
- Fits the Dana 60 HD axle, 35-spline, 9.75in ring gear, 4.56 and up ratios, used in Chrysler cars, Jeep, and Dodge/Ford trucks. Confirm your axle and spline count.
FAQ
Which axle does 915A386 fit?
The Dana 60 HD with a 9.75in ring gear and 35-spline axle shafts, in 4.56 and up ratios.
What is a Detroit Truetrac?
A helical gear limited-slip differential that biases torque automatically to the wheel with the most grip, with no maintenance.
What ratio range does this cover?
It is built for 4.56 and up ratios. Confirm your ratio and spline count before ordering.
Is it good for heavy loads?
Yes. The Truetrac is well suited to street, tow, and trail use on the heavy-duty Dana 60 axle.
