Double Cardan Universal Joints Replacement Centering Ball Replacement

Tools Required

Important: Production universal joints may not be reassembled. The production bearing cups do not have bearing retainer grooves. Discard all universal joint parts that are removed.

1. Disassemble the flange yoke assembly.
2. Inspect the ball seat insert bushing for wear.
3. If the bushing is worn, replace the ball support yoke and cross assembly.
4. Inspect the seal and ball seats along with the spring and washers.

If any parts show indication of excessive wear or are broken, replace the entire set with a service kit. Always discard the removed seal and replace the seal.

5. Inspect the centering ball surface.
6. If the ball surface shows signs of wear beyond a smooth polish, replace the ball.
7. Clean all of the plastic from the grooves of all the yokes. Drive a small pin or punch through the injection holes in order to remove the plastic.




Notice: When a centering ball requires replacement, all ball seat components must be replaced also. A separate ball and seat service kit is available. The kit has two seat springs and the longer spring must be discarded.

8. Disassemble the shaft in a bench vise.
9. Install the ball puller, J 23996-2 over the ball.
10. Tighten the puller nut finger tight.
11. Apply a light coat of multipurpose grease to the jaws of the ball puller tool in order to reduce friction between the jaws and the inside surface of the tool sleeve.
12. Tighten the nut until the ball is removed from the stud.
13. Position a new ball on the stud.



14. Position the J 23996-1 against the ball and drive the tool with a hammer until the ball bottoms on the stud.
15. Replace the ball seats and components.