GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Isuzu 🢒 2009 🢒 Ascender - 4WD 🢒 Body Repair 🢒 Collision Repair 🢒 Front Compartment Upper Side Rail Replacement

Removal Procedure

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


    Object Number: 1258066 Size: SH
  1. Remove all of the related panels and components. Refer to Upper Fender Rail Bracket Replacement.
  2. Restore as much of the damage as possible to the factory specifications.
  3. Note the location and remove the following as necessary:
    4. • The sealers
    • The sound deadeners
    • The anti-corrosion materials

    Object Number: 1258067 Size: SH

    Note: Drill through the upper fender rail only.

  4. Locate and drill out all of the factory welds for installation of the service part.

    5. Object Number: 1258069 Size: SH

    Note: Do not damage any of the inner panels or reinforcements.

  5. Remove the damaged upper fender rail.

Installation Procedure

    Object Number: 1258072 Size: SH

    Note: In any area with excessive damage, 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. Object Number: 1258074 Size: SH
  2. Prepare all of the attachment surfaces as necessary.
  3. Apply GM-approved Weld-Thru Coating or equivalent to all mating surfaces. Refer to Anti-Corrosion Treatment and Repair.
  4. Position the upper fender rail.

    5. Object Number: 1258076 Size: SH
  5. Plug the weld accordingly.

    6. Object Number: 1258078 Size: SH
  6. Reinstall the upper fender rail bracket. Refer to Upper Fender Rail Bracket Replacement.
  7. Install the hood hinge bracket. Refer to Upper Fender Rail Hood Hinge Bracket Replacement.

    8. Object Number: 1258081 Size: SH
  8. Clean and prepare all of the welded surfaces.

    9. Note: Prior to refinishing, refer to publication GM4901M-D-01 GM Approved Refinish Materials for recommended products. Do not combine the paint systems. Refer to the paint manufacturer recommendations.

  9. Apply sound deadening materials.
  10. Apply an approved anti-corrosion primer.
  11. Apply sealers and refinish as necessary.
  12. Install all of the related panels and components.