GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 621878  Size: SH
  1. Remove the endgate trim panel. Refer to Endgate Trim Panel Replacement .
  2. Remove the endgate water deflector.
  3. Clean endgate surface using GM P/N 3984 adhesive remover or equivalent.

Installation Procedure


    Object Number: 621878  Size: SH
  1. Align the endgate door water deflector to the endgate inner panel.
  2. Secure the water deflector at the corners.
  3. Starting at the bottom center, press the adhesive outward and upward to prevent puckering.
  4. Install the endgate trim panel. Refer to Endgate Trim Panel Replacement .