GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

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

Important: The service part is developed from a complete assembly and will require the spot weld removal at the rail mid joint. The lower rail service part comes as a complete front rail assembly, including all the brackets and the reinforcements.


    Object Number: 1609805  Size: SH

    Important: Loosen and protect the fuel and brake lines during rail replacement.

  1. Support the engine and the transmission with suitable equipment. Refer to Engine Support Fixture for the 2.2L engine.
  2. Remove the fasteners to the engine and the transmission.
  3. Remove all the other related panels and components as necessary, including the suspension and the crossmember.
  4. Visually inspect the damaged area. Repair as much of the damage as possible to factory specifications. Refer to Dimensions - Body .
  5. Remove the sealers and anti-corrosion materials from the repair area, as necessary. Refer to Anti-Corrosion Treatment and Repair .

  6. Object Number: 872672  Size: SH
  7. Locate the area where the front compartment will be separated from the rail.

  8. Object Number: 1609805  Size: SH
  9. Locate and drill the factory welds along the flanges of the rail, only up to and including the rail mid joint just forward of the dash panel.
  10. Drill out the factory welds.

  11. Object Number: 867551  Size: SH
  12. Pry open the outer layer of the rail at the front rail mid joint to allow the front portion of the rail to be removed from the vehicle.

  13. Object Number: 867552  Size: SH
  14. Remove the damaged front lower rail.

  15. Object Number: 872672  Size: SH
  16. Drill out the factory welds at the service rail assembly mid joint.
  17. Remove the forward portion of the front rail assembly at the mid joint.

  18. Object Number: 865237  Size: SH
  19. Prepare the mating surfaces as necessary.
  20. Apply 3M Weld-Thru Coating P/N 05916 or equivalent to all mating surfaces.

Installation Procedure


    Object Number: 867552  Size: SH

    Important: If the location of the original plug weld holes can not be determined, space the plug weld holes every 40 mm (1½ 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. Object Number: 867548  Size: SH
  5. Position the rail to the vehicle.

  6. Object Number: 867521  Size: SH
  7. Plug weld accordingly.
  8. Clean and prepare all of the welded surfaces.
  9. Install all related panels and components.
  10. Apply sealers and anti-corrosion materials to the repair area, as necessary. Refer to Anti-Corrosion Treatment and Repair .
  11. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  12. Install the suspension crossmember. Refer to Frame Replacement .
  13. Tighten
    Tighten the fasteners to 100 N·m (74 lb ft) + 180 degrees.