GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2003 🢒 GMC C Sierra - 2WD 🢒 Body and Accessories 🢒 Doors 🢒 Side Door Opening Weatherstrip Replacement

Removal Procedure
  1. Open both doors.
  2. Remove the sill plate. Refer to Front Side Door Sill Plate Replacement or Rear Side Door Sill Plate Replacement.
  3. Remove the hinge pillar trim. Refer to Body Hinge Pillar Trim Panel Replacement
  4. Remove the rear quarter trim panel. Refer to Rear Quarter Trim Panel Replacement
  5. Remove the windshield pillar molding. Refer to Windshield Pillar Garnish Molding Replacement.

    6. Object Number: 379214 Size: SH
  6. Remove the weather-strip from the rear side door pinch-weld flange.

Installation Procedure

    Object Number: 373637 Size: SH
  1. Install the weather-strip from the rear side door opening fully seating the weather-strip into the pinch-weld flange.
  2. Install the windshield pillar molding. Refer to Windshield Pillar Garnish Molding Replacement.
  3. Install the rear quarter trim panel. Refer to Rear Quarter Trim Panel Replacement
  4. Install the hinge pillar trim. Refer to Body Hinge Pillar Trim Panel Replacement.
  5. Install the sill plate. Refer to Front Side Door Sill Plate Replacement or Rear Side Door Sill Plate Replacement.
  6. Inspect the door closing effort and seal to door fit.