GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 41688 Centering Sphere Installer Tool

  1. Remove the steering column housing assembly. Refer to Steering Column Jacket - Disassemble - Off Vehicle .

  2. Object Number: 372985  Size: SH
  3. Remove the lower spring retainer (5) and discard.
  4. Remove the lower bearing spring (4).
  5. Remove the lower bearing seat (3).
  6. Remove the adapter and bearing assembly (2) from the steering column jacket assembly (1).

  7. Object Number: 372988  Size: SH
  8. Remove the steering shaft assembly from the steering column jacket assembly.

  9. Object Number: 372991  Size: SH
  10. Remove the 4 support screws and discard.
  11. Remove the steering column support assembly from the steering column jacket assembly.

  12. Object Number: 306318  Size: SH

    Important: Mark the upper shaft assembly and the lower steering shaft assembly to ensure proper assembly. Failure to assemble properly will cause the steering wheel to be turned 180 degrees.

  13. Tilt the upper shaft assembly (1) 90 degrees to the lower steering shaft assembly (2) and disengage.

  14. Object Number: 299885  Size: SH
  15. Insert the race and upper shaft assembly (1) into J 41688 .
  16. Insert J 41688 into a vise.
  17. Rotate the driver 90 degrees in the counterclockwise direction in order to disengage the centering sphere from the race and upper shaft assembly.
  18. Remove the race and upper shaft assembly (1) from J 41688 .
  19. Remove the shaft preload spring and the centering sphere fromJ 41688 .
  20. If necessary, discard the old centering sphere and the old shaft preload spring.

  21. Object Number: 371220  Size: SH
  22. Remove the joint preload spring from the centering sphere.
  23. Inspect the spring and spheres for wear. Discard if present.