GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 42058 Frame Adapter Clamp

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 .
  2. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
  3. Remove all related panels and components.
  4. Remove the rear impact bar. Refer to Rear Bumper Impact Bar Replacement .
  5. Note the location and remove the sealers and anti-corrosion materials from the repair area. Refer to Anti-Corrosion Treatment and Repair .
  6. Restore as much of the damage as possible to the factory specifications. Refer to Dimensions - Body .
  7. Use J 42058 to secure the vehicle if pulling and straightening is required.

  8. Object Number: 860975  Size: SH
  9. Remove the damaged section of frame rail within the shaded area.

Installation Procedure

    Caution: Refer to Collision Sectioning Caution in the Preface section.


    Object Number: 943350  Size: SH
  1. Determine the sectioning joint location within the recommended area.

  2. Object Number: 870425  Size: SH
  3. Cut the new frame rail end from the new frame rail assembly.
  4. Perform the sleeved butt-joint sectioning. Refer to Sleeved Butt Joint Repair .
  5. Install the rear impact bar. Refer to Rear Bumper Impact Bar Replacement .
  6. Apply the sealers and anti-corrosion materials to the repair area. Refer to Anti-Corrosion Treatment and Repair .
  7. Paint the repair area. Refer to Basecoat/Clearcoat Paint Systems .
  8. Install all related panels and components.
  9. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
  10. Enable the SIR system. Refer to SIR Disabling and Enabling .