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Home >> Chevrolet >> 2021 >> Tahoe Z71 >> Repair and Diagnosis >> Collision >> Body Panels >> Body Panel Replacement >> Body Panel Replacement >> Rear End Upper Panel Replacement >> Installation Procedure

Installation Procedure

    NOTE:

    Squeeze Type Resistance Spot Welds (STRSW) are recommended. If access to use Squeeze Type Resistance Spot Welds is not possible, MIG/MAG 8 mm (5/16 in) plug welds may be used, to replace those specific welds,unless otherwise noted: 

    NOTE:

    Prepare rear end upper panel before installation.

  1. Prepare rear end upper panel per installation requirements.
  2. Prepare all joining surfaces for welding as necessary.
  3. Apply weld-thru coating or equivalent to all welding surfaces. Anti-Corrosion Treatment and Repair .
    GM5415596Courtesy of GENERAL MOTORS COMPANY
  4. NOTE:

    Only remove E-coat where adhesive will be applied.

  5. Clean and prepare rear end upper panel and vehicle for adhesive according to adhesive manufacturer's recommendations. METAL PANEL BONDING .
  6. Apply structural adhesive (1) on the mating surfaces of rear end upper panel and vehicle according to adhesive manufacturer's recommendations. METAL PANEL BONDING .
    GM5415608Courtesy of GENERAL MOTORS COMPANY
  7. Install rear end upper panel (1) to vehicle using 3-dimensional measuring equipment and clamp into place.
    GM5415599Courtesy of GENERAL MOTORS COMPANY
  8. NOTE:

    Due to structure adhesive use spot welds only.

  9. Install spot welds (1). [28x]
    GM5415601Courtesy of GENERAL MOTORS COMPANY
  10. Install spot welds (1). [36x]
  11. Apply the sealers and anti-corrosion materials to the repair area as necessary. Anti-Corrosion Treatment and Repair
  12. NOTE:

    Before refinishing, refer to Anti-Corrosion Treatment and Repair .

  13. Paint the repaired area. Basecoat/Clearcoat Paint Systems .
  14. Install all related panels and components.
  15. Connect the battery negative cable. Battery Negative Cable Disconnection and Connection (9C1, 5W4)Battery Negative Cable Disconnection and Connection (KL9) .
  16. Enable the SIR System. SIR Disabling and Enabling .