Dana 44 Rear Axle & Differential Parts for Willys CJ3B
Pinion Bearings, U-Joints, Seals & Slip Yokes for Reliable Power Transfer (1953–1964).
Why the Dana 44 Rear Axle in the Willys CJ3B Wears Out After Decades.
The Dana 44 rear axle was one of the most rugged axle designs of its era in early Jeep and Willys models like the CJ3B, but decades of use take their toll just like on any other axle. Wheel bearings lose their smooth running under load and moisture, seals harden and start leaking, letting axle oil escape and lubrication suffer. Pinion bearings and ring-and-pinion sets wear from constant power transfer, eventually causing noticeable play or noise. Driveshaft U-joints dry out, lose mobility and cause vibration, while slip yokes can seize due to corrosion. Smaller parts such as axle shaft nuts, yoke nuts and differential cover gaskets also loosen or become brittle over time. Anyone driving their CJ3B off-road or restoring it should inspect the entire rear axle regularly for these wear points to keep the drivetrain and driving safety intact long-term.
- Wheel Bearings & Seals: The wheel bearing for the rear axle and the matching seal for reliable sealing.
- Pinion Bearings & Ring and Pinion: The outer pinion bearing set and the complete ring and pinion set for power transfer.
- Driveshaft & U-Joint: The heavy-duty U-joint and the slip yoke for front or rear.
- Nuts & Hardware: The axle shaft nut and the pinion seal for the axle shaft.
- Transfer Case Output Bearings: The bearing cup and output shaft bearing for power flow to the transfer case.
American Drivetrain Expertise in One Place.
Pinion bearings, ring-and-pinion sets, and outer pinion bearing sets come from Dana Spicer – the name inseparably linked to the Dana 44 axle and American drivetrain expertise. Wheel bearings, bearing cups, nuts, and gaskets are supplied by Crown Automotive, while slip yokes and the ring-and-pinion set are completed by Omix – both American manufacturers with decades of Jeep experience.
Your Partner for the Dana 44 Rear Axle in the Willys CJ3B.
Whether you need a single wear part or a complete rear axle overhaul, we're happy to advise you on torque specs, installation order, and correct gear pattern setup for the ring and pinion. We're also glad to help with compatibility questions for other Dana 44 applications across the Jeep and Willys lineup. Your order ships from our warehouse as fast as possible.