Description
Product Overview
Motive Gear’s RA28RJL differential bearing kit is built for the rear Dana 44 JL application. The kit combines machined aluminum carrier, Koyo tapered bearings for the carrier, front and rear pinion, and a high‑temperature seal with a crush sleeve or preload shim. Weighing 6.61 lb and measuring 11 × 12 × 2 in, the kit fits the original specifications while offering improved durability and reduced friction. All components are precision‑machined to maintain proper gear mesh and axle alignment.
Usage
Designed for performance‑oriented street vehicles, off‑road trucks, and light‑weight race cars, this kit handles the high shock loads typical of aggressive driving. Install it on any rear Dana 44 JL differential that matches the listed dimensions. Ideal for enthusiasts seeking smoother power delivery, reduced wear, and a reliable lock‑up mechanism during acceleration or cornering.

Why Choose Us
Motive Gear is a recognized leader in differential components, offering rigorous quality control and OEM‑level tolerances. Each bearing is sourced from Koyo, a trusted manufacturer, ensuring consistent load capacity and heat resistance. The kit includes all necessary hardware, eliminating the need for additional purchases, and comes with detailed installation instructions to guarantee a hassle‑free fit.
Key Features
- Precision‑machined aluminum carrier for lightweight strength
- Koyo tapered bearings provide superior load handling and longevity
- Integrated e‑locker carrier enhances torque control and traction
- High‑temperature seal and crush sleeve protect against contaminants
- Complete kit includes brush, cover gasket, and preload shim for easy installation
FAQ
Is this kit compatible with all Dana 44 JL differentials?
The RA28RJL kit is designed for rear Dana 44 JL differentials that match the original dimensions (11 × 12 × 2 in). Verify your vehicle’s part number before purchase.
Do I need additional tools to install the kit?
Standard hand tools and a torque wrench are sufficient. The kit includes all necessary bolts, gaskets, and a detailed installation guide.
Can the kit be used in high‑performance racing applications?
Yes. The Koyo tapered bearings and e‑locker carrier are engineered to withstand the shock loads and heat generated in competitive racing environments.
What warranty does Motive Gear offer?
Motive Gear provides a limited one‑year warranty covering manufacturing defects on all kit components.
How does the e‑locker carrier improve vehicle performance?
The e‑locker carrier allows controlled lock‑up of the differential, improving traction during acceleration and cornering while still permitting normal wheel speed differentiation when needed.




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