GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

    Important: Section in specified areas only. Sectioning outside of these areas may compromise the structural integrity of the vehicle. The door frame can be replaced at factory seams, but requires the removal of the windshield and the roof. The sectioning procedures have been developed as a more cost-effective alternative to complete replacement. The specific area to be sectioned is determined by the extent of the damage to the vehicle.

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

  3. Object Number: 1204864  Size: SH
  4. Remove all related panels and components.
  5. Repair as much of the damage as possible to factory specifications. Refer to Dimensions - Body .
  6. Caution: Refer to Foam Sound Deadeners Caution in the Preface section.


    Object Number: 1204869  Size: SH
  7. Note the location and remove the sealers and anti-corrosion materials from the repair area, as necessary. Refer to Anti-Corrosion Treatment and Repair in Paint/Coatings.

  8. Object Number: 535564  Size: SH
  9. On the original outer door frame (2), measure down from the lower edge (1) of the door opening 200 mm (8 in) and mark a horizontal line.

  10. Object Number: 1204874  Size: SH

    Important: Do NOT damage any inner panels or reinforcements.

  11. Cut the panel where sectioning is to be performed.
  12. Perform additional sectioning procedures. Refer to Outer Door Frame Sectioning .

  13. Object Number: 1204876  Size: SH
  14. Locate and drill out all factory welds. Note the number and location of the welds for installations of the service part.

  15. Object Number: 1204878  Size: SH
  16. Remove the damaged hinge pillar section.

Installation Procedure

  1. Cut the replacement hinge pillar section in corresponding locations to fit the original panel. The sectioning joint should be trimmed to allow 1½ times the metal thickness at the sectioning joint.

  2. Object Number: 749663  Size: SH
  3. Create a 50-mm (2-in) backing plate (A) from the unused portion of the service part. Trim the backing plate as necessary to fit behind the sectioning joint where there is no reinforcement.

  4. Object Number: 1204881  Size: SH
  5. Drill 8 mm (5/16 in) plug weld holes along the sectioning cut on the remaining original part. Locate these holes 13 mm (1/2 in) from the edge (A) and spaced 40 mm (1½ in) apart.

  6. Object Number: 1206238  Size: SH

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

  7. Drill 8 mm (5/16 in) plug weld holes in the service part as necessary in the locations noted from the original panel and along the sectioning cut.
  8. Prepare all mating surfaces as necessary.
  9. Apply 3M® Weld-Thru Coating P/N 05916 or equivalent to all mating surfaces.

  10. Object Number: 749673  Size: SH
  11. Fit the backing plate halfway into the sectioning joint, clamp and plug weld to the vehicle.

  12. Object Number: 1204885  Size: SH
  13. Position the center pillar.

  14. Object Number: 1204887  Size: SH
  15. Plug weld accordingly.
  16. Important: 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. Then go back and complete the stitch weld.

  17. Stitch the weld sectioning joint.
  18. Clean and prepare all welded surfaces.
  19. Apply the sealers and anti-corrosion materials to the repair area, as necessary. Refer to Anti-Corrosion Treatment and Repair in Paint/Coatings.
  20. Paint and repair the area. Refer to Basecoat/Clearcoat Paint Systems in Paint/Coatings.
  21. Install all related panels and components.
  22. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  23. Enable the SIR system. Refer to SIR Disabling and Enabling in SIR.