GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1245379  Size: SH
  1. Remove the endgate cover. Refer to Pickup Box Endgate Latch Cover Replacement .
  2. Disconnect the clip (1) retaining the lock rod to the lock cylinder.
  3. Remove the lock rod from the retaining clip (1).
  4. Remove the bolt retaining the lock cylinder to the endgate handle.
  5. Remove the lock cylinder from the endgate handle.

Installation Procedure


    Object Number: 1245379  Size: SH
  1. Code the new lock cylinder. Refer to Key and Lock Cylinder Coding in General Information.
  2. Install the lock cylinder to the endgate handle.
  3. Notice: Refer to Fastener Notice in the Preface section.

  4. Install the bolt retaining the lock cylinder to the endgate handle.
  5. Tighten
    Tighten the lock cylinder bolt to 9 N·m (80 lb in).

  6. Install the lock rod to the retaining clip (1).
  7. Connect the clip (1) retaining the lock rod to the lock cylinder.
  8. Install the endgate cover. Refer to Pickup Box Endgate Latch Cover Replacement .