GM Service Manual Online
For 1990-2009 cars only

Disassembly Procedure

Tools Required

    • J 23653 Lock Plate Compressor
    • J 42137 Lock Plate Compressor Adapter
    • J 21854-01 Pivot Pin Remover
  1. Remove the upper tilt head components. Refer to Steering Column Tilt Head - Off Vehicle .
  2. Remove the tilt spring. Refer to Tilt Spring - Off Vehicle .

  3. Object Number: 306299  Size: SH
  4. Remove 2 wire harness straps (2). Remove 1 wire harness strap (2) from the steering column tilt head assembly (1).

  5. Object Number: 306300  Size: SH
  6. Pop the wire harness assembly (1) out from the wire harness strap (2).

  7. Object Number: 306234  Size: SH
  8. Slide the 2 connectors (2) from the turn signal & multifunction switch assembly out from the ignition & key alarm switch assembly connector (1).

  9. Object Number: 306304  Size: SH
  10. Remove 2 pan head tapping screws (2).
  11. Remove the turn signal & multifunction switch assembly (1).

  12. Object Number: 306306  Size: SH
  13. Remove the adapter & bearing assembly (2) from the steering column jacket assembly (1).

  14. Object Number: 306307  Size: SH
  15. Remove 2 pivot pins (3) from the steering column support assembly (1) using J 21854-01  (2).

  16. Object Number: 306309  Size: SH
  17. Install the tilt lever and pull to disengage the steering column tilt head assembly (1) with the steering shaft assembly (3) from the steering column jacket assembly (2).

  18. Object Number: 306316  Size: SH
  19. Remove the steering shaft assembly (2) from the steering column tilt head assembly (1).
  20. Important: Mark the race & upper shaft assembly and the lower steering shaft assembly to ensure proper assembly. Failure to assemble properly will cause steering wheel to be turned 180 degrees.

  21. Mark the upper steering shaft assembly and mark the lower steering shaft assembly to show alignment.

  22. Object Number: 306318  Size: SH
  23. Separate the lower steering shaft assembly (2) from the race & upper shaft assembly (1).

  24. Object Number: 306322  Size: SH
  25. Remove 4 torx screws (2) from the steering column support assembly (1).

Assembly Procedure

    • J 23653 Lock Plate Compressor
    • J 42137 Lock Plate Compressor Adapter
    • J 41688 Centering Sphere Installer

    Object Number: 299877  Size: SH
  1. Install the steering column support assembly (1) to the steering column jacket assembly (3).
  2. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  3. Install 4 torx screws (2).
  4. Tighten
    Tighten the screws to 17 N·m (13 lb ft).


    Object Number: 299879  Size: SH
  5. Install the centering sphere (1) and the joint preload spring (2) using J 41688 .
  6. Lubricate the centering sphere (1) with lithium grease.

  7. Object Number: 299881  Size: SH
  8. Compress the centering sphere and joint preload spring. Rotate the driver 90 degrees in the clockwise direction until the arms lock in place.

  9. Object Number: 299885  Size: SH
  10. Install the race & upper shaft assembly (1). Rotate the race & upper shaft assembly 90 degrees.

  11. Object Number: 299887  Size: SH
  12. Remove the race & upper shaft assembly with J 41688 . Once removed, you may remove the race & upper shaft assembly with the centering sphere.

  13. Object Number: 299888  Size: SH
  14. Apply lithium grease to the race & upper shaft assembly (1).
  15. Install the lower steering shaft assembly (2) to the race and upper shaft assembly (1).

  16. Object Number: 299889  Size: SH
  17. Align the marks made on the upper steering shaft assembly with the marks on lower steering shaft assembly.
  18. Install the lower steering shaft assembly onto the centering sphere within the upper steering shaft assembly.

  19. Object Number: 306326  Size: SH
  20. Install the steering column tilt head assembly (1) to the steering column jacket assembly (4).
  21. Stake the pivot pin locations (2).

  22. Object Number: 306304  Size: SH
  23. Install the turn signal & multifunction switch assembly (2).
  24. Install the 2 pan head tapping screws (1).
  25. Tighten
    Tighten the screws to 10 N·m (89 lb in).


    Object Number: 306295  Size: SH
  26. Install the lock module assembly (1).
  27. Install the three pan head tapping screws (2).
  28. Tighten
    Tighten the screws to 3.5 N·m (31 lb in).


    Object Number: 306278  Size: SH
  29. Install the ignition & key alarm switch assembly (1).
  30. Install the 2 tapping screws (2).
  31. Tighten
    Tighten the screws to 1.5 N·m (13 lb in).


    Object Number: 306277  Size: SH
  32. Install the key alarm connector (1) to the lock module assembly (2).

  33. Object Number: 306234  Size: SH
  34. Slide the 2 connectors (2) of the turn signal & multifunction switch assembly into the ignition & key alarm switch assembly connector (1).

  35. Object Number: 306331  Size: SH
  36. Route the wire harness assembly (1) around the column and put into the wire harness strap (2).

  37. Object Number: 306338  Size: SH
  38. Install 2 wire harness straps (2). Install 1 wire harness strap (2) into the steering column tilt head assembly (1).
  39. Install the tilt spring. Refer to Tilt Spring - Off Vehicle .
  40. Install the upper tilt head components. Refer to Steering Column Tilt Head - Off Vehicle .