Overview
The Detroit Locker 913A592 is a TrueTrac limited-slip differential for a Dana 44 front axle with 30 splines, listed at a 3.92 up ratio. It is an all gear driven unit with no clutches, built to move power from a slipping wheel to the wheel that still has grip.
A front-axle unit has to match your front housing and gearing. No vehicle is named, so check the axle type, location and spline count before buying.
Key features
- Clutchless, all gear driven design
- Automatic power transfer when one wheel slips
- No clutches to wear out
- Dana 44 front axle with 30 splines
- Ratio of 3.92 up
Front axle considerations
A front limited-slip changes how the front axle shares torque, so the steering and driveline geometry around it matter. Check the front axle shafts, CV joints and seals for wear before installing, since the lock changes how load reaches those parts. Confirm the housing is a front Dana 44 with the spline count you need.
Front differentials are often serviced with the steering gear and track components in view, so plan to check the whole front end while the axle is open. Note any play in the tie rods or ball joints, because worn steering parts can make a limited-slip front feel unstable. Fresh fluid and a careful break-in complete the job.
- Inspect CV joints and axle shafts
- Check tie rods and ball joints for play
- Verify the front housing location before ordering
- Drive gently during the break-in
Specifications
| Brand | Detroit Locker |
|---|---|
| Part number | 913A592 |
| UPC | 91305920000 |
| Differential type | Limited slip assembly |
| Design | All gear driven, clutchless |
| Axle type | Dana 44 |
| Axle location | Front |
| Axle spline count | 30 splines |
| Ratio designation | 3.92 up |
| Axle manufacturer | Dana |
Vehicle fitment
No vehicle years, makes or models are given. The stated specifications are a Dana 44 front axle, 30 splines and a 3.92 up ratio, so verify each one on your truck.
Confirm your vehicle’s year, model and trim before ordering.
Installation notes
A front limited-slip changes the front gearing setup, so a professional should verify the ring and pinion match and handle the break-in.
What’s included
Lay out every part against your front-end plan before the job begins.












