GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1998 🢒 GMC C-Series Medium Duty Truck B7 🢒 Steering 🢒 Steering Wheel and Column - Tilt 🢒 Steering Column Housing - Off Vehicle

Disassembly Procedure

Tools Required

    • J 38639 Steering Column Housing Bearing Installer
    • J 8092 Driver Handle
    • J 22635 Lock Shoe and Release Lever Pin Remover and Installer
    • J 21854-01 Pivot Pin Remover
  1. Remove the pivot and pulse switch assembly. Refer to Pivot and Pulse Switch Assembly - Off Vehicle .
  2. Install the tilt lever. Refer to Tilt Lever Replacement - On Vehicle .

    3. Object Number: 343869 Size: SH
  3. Remove 2 pivot pins (1) using J 21854-01 .

    4. Object Number: 344138 Size: SH
  4. Pull back on the tilt lever (2) and pull the steering column housing assembly (1) down and away from the steering column.
  5. Remove the tilt lever (2). Refer to Tilt Lever Replacement - On Vehicle .

    6. Object Number: 354085 Size: SH
  6. Disassemble the steering column housing assembly, if needed:
    7. 6.1. Remove the bearing assembly (12).
    6.2. Remove the wire protector shield (9).
    6.3. Remove the switch actuator rack (17) and the rack preload spring (16).
    6.4. Remove the drive shaft (8).
    6.5. Remove the switch actuator sector (13).
    6.6. Release the lever pin (3) using J 22635 .
    6.7. Remove the shoe release lever (2).
    6.8. Remove the release lever spring (4).
    6.9. Remove the dowel pin (7).
    6.10. Remove the steering wheel lock shoes (10) and (11) using J 22635 and the shoe springs (5).
    6.11. Remove the bearing assembly (1).

Assembly Procedure

Tools Required

    • J 38639 Steering Column Housing Bearing Installer
    • J 8092 Driver Handle
    • J 22635 Lock Shoe and Release Lever Pin Remover and Installer
    • J 21854-01 Pivot Pin Remover

    Object Number: 354085 Size: SH
  1. To assemble the steering column housing assembly if needed:
  2. Install the bearing assembly (1)
  3. Install the shoe springs (5).
  4. Install the steering wheel lock shoes (10) and (11).
  5. Install the dowel pin (7).
  6. Install the release lever spring (4).
  7. Install the shoe release lever (2).
  8. Install the lever pin (3) using J 22635 .
  9. Install the drive shaft (8).
  10. Install the switch actuator sector (13).
  11. Install the rack preload spring (16).
  12. Install the switch actuator rack (17) to the switch actuator sector (13).
  13. Install the bearing assembly (12) using J 8092 and J 38639 .
  14. Install the wire protector shield (9).

    15. Object Number: 354605 Size: SH

    Important: If the steering column housing assembly has been staked 3 times it must be replaced.

  15. Stake the steering column housing assembly in 3 places.

    16. Object Number: 344138 Size: SH
  16. Install the steering column housing assembly:
    17. 16.1. Install the tilt lever (2). Refer to Tilt Lever Replacement - On Vehicle .
    16.2. Position the steering column housing assembly (1) onto the steering column housing support.
    16.3. Align the switch actuator rack with the pin on the end of the ignition switch actuator assembly.
    16.4. Pull back on the tilt lever (2) to position the steering column housing assembly (1).
    16.5. Push the steering column housing assembly (1) into the steering column housing support .
    16.6. Release the tilt lever (2) to lock the steering wheel lock shoes and the dowel pin.
    16.7. Remove the tilt lever (2). Refer to Tilt Lever Replacement - On Vehicle .

    Object Number: 352626 Size: SH
  17. Install 2 pivot pins (1).
  18. Press the 2 pins (1) until they are firmly seated.
  19. Install the pivot and pulse switch assembly. Refer to Pivot and Pulse Switch Assembly - Off Vehicle .