GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

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

  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: 1673437  Size: SH
  4. Remove all related panels and components.
  5. Repair as much of the damage as possible. Refer to Dimensions - Body .
  6. Remove the sealers and anti-corrosion materials from the repair area, as necessary. Refer to Anti-Corrosion Treatment and Repair in Paint and Coatings.
  7. Important: Note the number and location of the factory welds for installation of the lower tie bar.


    Object Number: 1673438  Size: SH
  8. Locate and drill out all the necessary factory welds on the inner side of the lower tie bar.

  9. Object Number: 1673440  Size: SH
  10. Locate and drill out all the necessary factory welds on the outer side of the lower tie bar.

  11. Object Number: 1673437  Size: SH
  12. Remove the lower tie bar.

Installation Procedure


    Object Number: 1673437  Size: SH

    Important: If the location of the original plug weld holes can not be determined, space the plug weld holes every 40 mm (1 1/2 in) apart.

  1. Drill 8-mm (5/16-in) plug weld holes in the service part, as necessary, in the locations noted from the original panel.
  2. Prepare all mating surfaces as necessary.
  3. Apply 3M Weld-Thru Coating P/N 05916, or equivalent, to all mating surfaces.
  4. Position the tie bar on the vehicle using 3-dimensionial measuring equipment. Clamp the tie bar into place.

  5. Object Number: 1673440  Size: SH
  6. Plug weld accordingly on the outer side of the lower tie bar.

  7. Object Number: 1673438  Size: SH
  8. Plug weld accordingly on the inner side of the lower tie bar.
  9. Clean and prepare all of the welded surfaces.
  10. Install all of the related panels and components.
  11. Apply the sealers and anti-corrosion materials to the repair area, as necessary. Refer to Anti-Corrosion Treatment and Repair in Paint and Coatings.
  12. Paint the repaired area. Refer to Basecoat/Clearcoat Paint Systems in Paint and Coatings.
  13. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  14. Enable the SIR system. Refer to SIR Disabling and Enabling in SIR.