Overview
The Power Trax 9204443020 is a no-slip Trac-Loc case for Dana 44 axles with 30 splines. It is designed for Track Lock differentials and reuses the existing carrier.
The no-slip traction system pairs the smooth operation of a limited-slip differential with the traction of a locking differential. A synchronization mechanism reduces the ratcheting sounds common to other locking differentials, which suits everyday street driving as well as trail use.
Key features
- Fits 30 spline Dana 44 axles
- For Track Lock differentials only
- Reuses the existing carrier; no ring and pinion setup
- Synchronization mechanism reduces ratcheting sounds
- Automatic locker type for front and rear positions
How a locker changes driving
A locker forces both wheels on an axle to turn at the same speed, which helps when one tire lifts or loses grip on uneven ground. Automatic lockers engage without a dash switch, so they work through the normal driving cycle. The tradeoff is that the axle can steer less predictably on slick pavement, so driving habits need to adjust after installation.
Before fitting a locker, check the carrier, the axle shafts and the gear oil. A locker places extra stress on the drivetrain, so inspect u-joints and axle seals for wear. Use a gear oil suited to lockers and refill to the proper level. Practicing slow turns in an open area helps you learn how the axle behaves.
- Inspect axle seals before installing
- Use gear oil suited to lockers
- Test slow turns in an open area
- Check that tire sizes match across the axle
Specifications
| Brand | Power Trax |
|---|---|
| Part number | 9204443020 |
| UPC | 662960011863 |
| Differential type | Automatic locker |
| Axle spline | 30 splines |
| Axle type | Dana 44 |
| Axle manufacturer | Dana |
| Axle location | Front and rear |
Vehicle fitment
No vehicle years or models accompany this Power Trax case. The axle requirement is Dana 44 with 30 splines, so count the splines on your axle before buying.
Confirm your vehicle’s year, model and trim before ordering.
Installation notes
No ring and pinion setup is needed, and no special tools or oils are required for installation. Installing any locker changes how torque is shared between wheels, so test it in a safe, open area before trail use.
What’s included
It is the case only. Hardware and gear oil are not included, so plan for them before installing.











