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 🢒 Lock Housing Assembly - Off Vehicle

Disassembly Procedure
  1. Remove the steering column lock cylinder set. Refer to Steering Column Lock Cylinder Set - Off Vehicle .

    2. Object Number: 344004 Size: SH
  2. Remove the upper bearing inner race seat (1) from the steering shaft assembly.
  3. Remove the inner race (2) from the steering shaft assembly.

    4. Object Number: 343832 Size: SH
  4. Remove 3 pan head 6 lobe soc tap screws (1) from the lock housing cover assembly.

    5. Object Number: 354107 Size: SH
  5. Remove the lock housing cover assembly (1).
  6. Remove the column housing cover end cap (2).
  7. Remove the dimmer switch rod actuator (3) from the lock housing cover assembly (1).

    8. Object Number: 343835 Size: SH
  8. Remove the switch actuator pivot pin (2) from the ignition switch assembly (1).

Assembly Procedure

    Object Number: 343861 Size: SH
  1. Install the switch actuator pivot pin (2) to the ignition switch assembly (1).

    2. Object Number: 354605 Size: SH
  2. Align the lock housing cover assembly (1) onto the steering column.
  3. Lubricate the dimmer switch rod actuator (3) with lithium grease.
  4. Install the dimmer switch rod actuator (3) into the lock housing cover assembly (1).
  5. Align the dimmer switch rod actuator (3) with the dimmer switch actuator rod.
  6. Install the column housing cover end cap (2) to the lock housing cover assembly (1).

    7. Object Number: 343832 Size: SH

    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.

  7. Install the lock housing cover assembly and secure using 3 pan head 6 lobe soc tap screws (1).

    8. Tighten
    Tighten the 3 pan head 6 lobe soc tap screws (1) to 9 N·m (80 lb in).


    Object Number: 343818 Size: SH
  8. Lubricate the inner race (2) with lithium grease.
  9. Install the inner race (2) to the steering shaft assembly.
  10. Install the upper bearing inner race seat (1) to the steering shaft assembly.
  11. Install the steering column lock cylinder set. Refer to Steering Column Lock Cylinder Set - Off Vehicle .