GM Service Manual Online
For 1990-2009 cars only

Extension Rear Seat to Back Window Replacement Sedan


    Object Number: 862047  Size: MF
  1. Note the amount and location of the spot welds.
  2. Remove the sealer and drill spot welds from:
  3. 2.1. The rear wheel housing
    2.2. The rear seat to back window panel assembly
    2.3. The rear shock tower cap
    2.4. The quarter inner lower front
  4. Clean all of the weld seams with a wire brush, prime, and seal all of the repair areas.
  5. Apply a permanent underbody sealant.
  6. Important: Ensure that proper corrosion protection processes are used on all repair areas.

  7. Prime with a 2-part catalyzed primer.
  8. Apply sealers and corrosion protection materials according to the information in the Body Paint section of this service manual or the paint manufacturer's recommendations.
  9. Clean the surface for welding and grind the primer off of the new part at the connecting points. Apply 3M® Weld-Thru Coating P/N 05913, or equivalent, to all areas to be welded.
  10. Measure and align the extension rear seat to back window. Clamp in place.
  11. Use a MIG to plug the weld.

Extension Rear Seat to Back Window Replacement Coupe


    Object Number: 862044  Size: MF
  1. Note the amount and location of the spot welds.
  2. Remove the sealer and drill spot welds from:
  3. 2.1. The rear wheel housing
    2.2. The rear seat to back window panel assembly
    2.3. The rear shock tower cap
    2.4. The quarter inner lower front
  4. Clean all of the weld seams with a wire brush, prime, and seal all repair areas.
  5. Apply a permanent underbody sealant.
  6. Important: Ensure that proper corrosion protection processes are used on all repair areas.

  7. Prime with a 2-part catalyzed primer.
  8. Apply sealers and corrosion protection materials according to the information in the Body Paint section of this service manual or the paint manufacturer's recommendations.
  9. Clean the surface for welding and grind the primer off of the new part at the connecting points.
  10. Apply 3M® Weld-Thru Coating P/N 05913, or equivalent, to all areas to be welded.
  11. Measure and align the extension rear seat to back window. Clamp into place.
  12. Use a MIG to plug the weld.