GM Service Manual Online
For 1990-2009 cars only
  1. Remove the upper tilt head components assembly. Refer to Steering Column Tilt Head Housing - Disassemble - Off Vehicle .

  2. Object Number: 372981  Size: SH
  3. Remove the the 2 tapping screws (1).
  4. Remove the lock bolt support bracket (2).
  5. Remove the lock bolt assembly (3).
  6. Remove the ignition lock actuator assembly (4).