Overview
The Crown Automotive 8126637BC is a 260 series front axle U-joint with a 1.06 inch cap and a grease fitting. It fits the Cherokee XJ, CJ5, CJ7, Comanche, Scrambler and Wrangler YJ. The part is also known as CRO8126637BC.
The joint is fitted at the front axle and has a grease fitting for lubrication. Crown Automotive has made Jeep replacement parts for over 50 years.
The cap size and series are the key facts for matching this joint. Several U-joint sizes exist, so measuring the caps of the old joint before replacement, and comparing the series and the 1.06 inch cap given here, avoids a wrong choice.
The joint has a grease fitting for front axle service. Confirm the cap size against your old joint before ordering. The fitment years run from the mid-1970s through the mid-1990s.
Key features
- 260 series U-joint
- 1.06 inch cap
- Greaseable, for front axles
- Front position
- Direct fit replacement part
Greasing and front joint care
Front axle U-joints work under steering angle as well as drive torque, so they wear faster in areas with heavy off-road use. A joint with a grease fitting can be purged of water and dirt, which extends the life of the bearing caps. Pump grease until fresh grease appears at the cap seals, and wipe away the excess.
Look for dry seals, rust streaks on the caps, and play when the axle is lifted. Stiff steering or a clicking sound on tight turns can also point to a worn joint. Front joints are often replaced alongside the axle shafts and the other joint on the same side, since wear tends to match across the set.
- Grease until fresh grease shows at the seals
- Check for play with the axle lifted
- Inspect for rust streaks on the caps
Specifications
| Brand | Crown Automotive |
|---|---|
| Part number | 8126637BC |
| UPC | 70000707463 |
| Product type | Front axle U-joint |
| Also cataloged as | CRO8126637BC |
| Series | 260 |
| Cap size | 1.06 inch |
| Lubrication | Grease, for front axles |
| Position | Front |
| Fit type | Direct fit |
Vehicle fitment
The 8126637BC fits Jeeps from the mid-1970s through the mid-1990s.
- 1984–1992 Jeep Cherokee (XJ) (Base, Briarwood, Chief, Laredo, Limited, Pioneer, Sport)
- 1976–1983 Jeep CJ5 (Base, Golden Eagle, Laredo, Limited, Renegade)
- 1976–1986 Jeep CJ7 (Base, Golden Eagle, Golden Hawk, Laredo, Limited, Renegade)
- 1986–1992 Jeep Comanche (Base, Chief, Custom, Eliminator, Laredo, Pioneer, X, XLS)
- 1981–1985 Jeep Scrambler (Base, Laredo, Renegade, SL, SR)
- 1987–1995 Jeep Wrangler (YJ) (Base, Islander, Laredo, Renegade, Rio Grande, S, SE, Sahara, Sport)
The list stops at 1992 for the Cherokee XJ and 1995 for the Wrangler YJ. The TJ, ZJ and JK are not covered. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Measure the cap size and series on your existing joint, since the same vehicle can use other U-joints.
What’s included
One front axle U-joint.








