GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Warning: Refer to Approved Equipment for Collision Repair Warning in the Preface section.

  1. Disable the SIR system. Refer to SIR Disabling and Enabling.
  2. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection.

  3. Object Number: 787604  Size: SH

    Warning: Sectioning should be performed only in the recommended areas. Failure to do so may compromise the structural integrity of the vehicle and cause personal injury if the vehicle is in a collision.

  4. Remove all related panels and components.
  5. Repair as much of the damage as possible.
  6. Remove the sealers and anti-corrosion materials from the repair area, as necessary. Refer to Anti-Corrosion Treatment and Repair.
  7. Note structural adhesive locations.

  8. Object Number: 787605  Size: SH

    Note: Do not damage any inner panels or reinforcements.

  9. Measure down (a) 220 mm (8 5/8 in) from the edge of the door opening. Create a cut line.

  10. Object Number: 787608  Size: SH
  11. Cut the panel where sectioning is to be performed.

  12. Object Number: 787611  Size: SH

    Note: Note the number and location of the factory welds for installation of the center pillar.

  13. Locate, mark, and drill out all the necessary factory welds.

  14. Object Number: 787614  Size: SH
  15. Remove the damaged front pillar.

Installation Procedure


    Object Number: 787618  Size: SH
  1. Measure the service part 30 mm (1 3/16 in) longer than the original reinforcement to allow for an overlap.
  2. Cut the service part at this sectioning location.

  3. Object Number: 787620  Size: SH
  4. Cut the service part in the corners as shown and step the tabs inward to allow the service part to fit under the original reinforcement.
  5. Drill 8 mm (5/16 in) plug weld holes along the sectioning cut on the original reinforcement. Locate these holes 13 mm (½ in) from the edge and spaced 40 mm (1½ in) apart.

  6. Object Number: 787621  Size: SH

    Note: If the location of the original plug weld holes can not be determined, or if structural weld-thru adhesive is present, space the plug weld holes every 40 mm (1½ in).

  7. Drill 8 mm (5/16 in) plug weld holes in the service reinforcement, as necessary, in the locations noted from the original panel.
  8. Prepare all mating surfaces, as necessary.
  9. Apply 3M Weld-Thru Coating P/N 05913 or equivalent to all mating surfaces.
  10. Apply structural adhesive Lord 108 to locations noted in the removal procedure.

  11. Object Number: 787622  Size: SH
  12. Align the service part on the vehicle using 3-dimensional measuring equipment.
  13. Plug weld accordingly.
  14. To create a solid weld with minimum heat distortion, make 25 mm (1 in) stitch welds along the seam with 25 mm (1 in) gaps between them. Go back and complete the stitch weld.
  15. Clean and prepare all of the welded surfaces.
  16. Apply the sealers and anti-corrosion materials to the repair area, as necessary. Refer to Anti-Corrosion Treatment and Repair.
  17. Paint the repaired area. Refer to Basecoat/Clearcoat Paint Systems.
  18. Install all of the related panels and components.
  19. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection.
  20. Enable the SIR system. Refer to SIR Disabling and Enabling.