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2002 Avalanche 3-27
Quarter Panel
Installation Procedure
1. Trim and discard the upper mounting
flange on the service Quarter Panel so
that it will fit over the 25 mm (1 in.)
flange left from the original panel.
2. Drill 8 mm (5/16 in.) plug weld holes
along the sectioning cut on the service
part. Locate these holes 13 mm (1/2 in.)
from the edge and spaced 40 mm (1-1/2
in.) apart (1).
IMPORTANT: In any area damaged
beyond recognition, space plug weld holes
every 40 mm (1-1/2 in.) apart.
4. Drill 8 mm (5/16 in.) plug weld holes in
the service part as necessary in the
locations noted from the original panel
and along the sectioning cut.
5. Prepare all attachment surfaces as
necessary.
6. Apply weld-through primer to all bare
metal surfaces.
CAUTION: THE FUEL FILLER
OPENING MUST BE PROPERLY
SEALED PRIOR TO POSITIONING
THE QUARTER PANEL. FAILURE TO
PROPERLY SEAL THE QUARTER
PANEL COULD RESULT IN EXHAUST
GAS LEAKAGE INTO THE INTERIOR
OF THE VEHICLE CAUSING
PERSONAL INJURY.
7. Install GM P/N 12399117 Sealing Strip
between outer wheelhouse and quarter
panel gas door pocket.
8. Apply internal sealers (1) in the
locations noted from the removal
procedure.
—continued
8mm
(5/16 IN)
40mm
(1 1/2 IN)
1
8mm
(5/16 IN)
40mm
(1 1/2 IN)
1
1