Install New U-Joints

What happens here

Take a new U-joint (e.g., Duralast brand) and carefully remove one cup, exposing the needle bearings. Insert the U-joint cross into one side of the drive shaft yoke. Carefully slide the removed cup back onto the U-joint cross pin from the other side of the yoke, ensuring all needle bearings stay in place. Repeat this for the other U-joints. Use a leather strap or soft material and a hammer to gently tap the cups into place, making sure they are perfectly straight. Use a socket to tap the cups just far enough to allow the retaining rings to be seated. Install the retaining rings using needle-nose pliers. Once both cups are installed with retaining rings, ensure the U-joint moves freely. If it's stiff, gently tap the yoke ears with a hammer to relieve pressure until it frees up. Grease the new U-joints using a grease gun.

Goal: Mount new, greasable U-joints onto the drive shaft.