GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2000 🢒 GMC C-Series Medium Duty Truck B7 🢒 Steering 🢒 Steering Wheel and Column - Tilt 🢒 Ignition Lock Cylinder Replacement - On Vehicle

Removal Procedure
  1. Remove the turn signal switch assembly. Refer to Multifunction, Turn Signal, and Hazard Switch Replacement - On Vehicle .

    2. Object Number: 378816 Size: SH
  2. Remove the lock retaining screw (2).
  3. Remove the steering column lock cylinder set (1).

Installation Procedure

    Object Number: 378816 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.

  1. Put the steering column lock cylinder set (1) into the lock housing cover assembly.
  2. Install the lock retaining screw (2).

    3. Tighten
    Tighten the screws to 2.5 (22 lb in).

  3. Install the turn signal switch assembly. Refer to Multifunction, Turn Signal, and Hazard Switch Replacement - On Vehicle .