The Eaton Detroit Truetrac is a helical gear-driven limited-slip differential that puts down the traction available at each wheel while sharpening handling and drivability. It works smoothly and automatically with no maintenance, and suits nearly any street, tow, or trail vehicle that wants a quiet traction upgrade without the on and off behavior of a locker. This unit fits the Dana 44 front used in Chrysler and Dodge trucks with the Dana 44 front axle.
- Type: Helical gear limited-slip (Detroit Truetrac)
- Axle: Dana 44 front
- Ring gear diameter: 8.5in
- Axle shaft diameter: 1.31in
- Spline count: 30
- Gear ratio: 3.92 & up
- Maintenance: None (fully automatic operation)
- Part number: 913A592
Axle Fitment
- Fits the Dana 44 front, 30-spline, 3.92 and up ratios, as used in Chrysler and Dodge trucks with the Dana 44 front axle. Confirm your axle and spline count.
FAQ
What axle does the Eaton 913A592 Truetrac fit?
It is built for the Dana 44 front, 30-spline, 8.5in ring gear. Verify your axle and spline count before ordering.
Does the Detroit Truetrac need any maintenance?
No. The Truetrac is a fully automatic helical gear limited-slip that operates smoothly with no clutch packs to service and no maintenance.
Will it work with my gear ratio?
This unit covers 3.92 and up ratios. Match it to your ring and pinion setup when planning the build.
Is the Truetrac good for street, towing, and trail use?
Yes. It works automatically and quietly, so it suits street driving, towing, and light off-road use without the on and off behavior of a locker.
Does it come as a complete differential?
Yes. The 913A592 is a complete Truetrac differential unit. Setup uses standard install parts (bearings, shims, and seals) sized for your axle.
