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Tahoe / Yukon Service Manual

Overlap_Backing Plate Sectioning

Overlap/Backing Plate Sectioning Overlap Procedure

Overlap_Backing Plate Sectioning — figure 1
Overlap_Backing Plate Sectioning — figure 1
  1. Measure, mark and cut the service part (1) to overlap the original panel by approximately 25 mm (1 in).
Overlap_Backing Plate Sectioning — figure 2
Overlap_Backing Plate Sectioning — figure 2
  1. Drill 8 mm (5/16) plug weld holes (1) spaced 40  mm (1½  in.) apart at the sectioning location.
  2. Prepare all mating surfaces for welding as necessary.
  3. Apply Weld-Thru Coating or equivalent to all mating surfaces. Anti-Corrosion Treatment and Repair
  4. Position service part to vehicle using 3-dimensional measuring equipment and clamp into place.
Overlap_Backing Plate Sectioning — figure 3
Overlap_Backing Plate Sectioning — figure 3
  1. Install MIG/MAG stich weld (1) on sectioning location.
  2. Install MIG/MAG plug welds (2) on sectioning location.
  3. Apply the sealers and anti-corrosion materials to the repair area as necessary. Anti-Corrosion Treatment and Repair.
  4. Paint the repaired area. Basecoat/Clearcoat Paint Systems. Backing Plate Procedure
Overlap_Backing Plate Sectioning — figure 4
Overlap_Backing Plate Sectioning — figure 4
  1. Fabricate a 50 mm (2 in) backing plate (1) to fit behind the service part and the original panel.
Overlap_Backing Plate Sectioning — figure 5
Overlap_Backing Plate Sectioning — figure 5
  1. Drill 8 mm (5/16) plug weld holes (1) spaced 40  mm (1½  in.) apart at the sectioning location.
  2. Prepare all mating surfaces for welding as necessary.
  3. Apply Weld-Thru Coating or equivalent to all mating surfaces. Anti-Corrosion Treatment and Repair
  1. Position service part and backing plate to vehicle using 3-dimensional measuring equipment and clamp into place.
Overlap_Backing Plate Sectioning — figure 6
Overlap_Backing Plate Sectioning — figure 6
  1. Install MIG/MAG stich weld (1) on sectioning location.
  2. Install MIG/MAG welds (2) on sectioning location.
  3. Apply the sealers and anti-corrosion materials to the repair area as necessary. Anti-Corrosion Treatment and Repair.
  4. Paint the repaired area. Basecoat/Clearcoat Paint Systems.