GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


Object Number: 1839742  Size: SH

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

Note: A structural reinforcement (1) is located between the inner rocker (2) and the inner body side panel (3) on both the right and the left side of the vehicle. Nylon replacements are available if necessary, and can be ordered separately.

Note: Failure to replace any damaged reinforcement as described could compromise the structural integrity of the vehicle.


    Object Number: 1839745  Size: SH
  1. Remove the inner front door lock pillar (1). Refer to Body Lock Pillar Inner Panel Sectioning Replacement.
  2. Remove the lower lock pillar reinforcement (2) and the outer panel (3).

  3. Object Number: 1839746  Size: SH

    Note: The reinforcement is bonded. Push in the clip for retaining in position.

  4. Remove the damaged structural reinforcement.

  5. Object Number: 1815311  Size: SH

    Note: Do NOT remove existing primer from the inner panels when removing the structural reinforcement.

  6. If the inner rocker panel is not being replaced, use a chisel or equivalent to remove the excess and loose structural adhesive from the inner rocker panel.

Installation Procedure

    Note: Use only enough naphtha solvent to dampen a cloth. Too much solvent may saturate the structural reinforcement and may migrate out later, affecting the bond strength of the adhesive.

  1. Clean the replacement structural reinforcement and all of the mating surfaces with naphtha solvent. Allow to dry thoroughly.

  2. Object Number: 1839747  Size: SH

    Note: The adhesive has a 20-30 minute work time. Do NOT allow the adhesive to cure prior to installing the structural reinforcement to the vehicle and to the inner hinge pillar reinforcement. Review the manufacturer's instructions. Refer to Reinforcement Bonding.

  3. Apply beads of adhesive to the reinforcement mating surface on the back side of the nylon block.

  4. Object Number: 1839748  Size: SH

    Note: Do NOT pull the structural reinforcement apart from the adjacent panels after the panels have been joined together. Slide the reinforcements from side to side, or up and down, for proper alignment.

  5. Position the structural reinforcement to the body and push firmly into place. Ensure that the push pins are properly aligned.

  6. Object Number: 1839749  Size: SH
  7. Temporarily hold the structural reinforcement in place with tape.
  8. Remove the tape from the structural reinforcement.

  9. Object Number: 1839750  Size: SH
  10. Apply 9-13 mm beads of adhesive to the reinforcement mating surface of the inner body side, as shown.

  11. Object Number: 1839752  Size: SH

    Note: Do NOT pull the outer body side assembly apart from the structural reinforcement after the parts have been joined together. Slide the outer panel from side to side, or up and down, for proper alignment.

  12. Position the body side inner assembly and clamp into place. Refer to Body Lock Pillar Inner Panel Sectioning Replacement.