2002 Avalanche 3-11
Rear Lock Pillar
Sectioning
Installation Procedure
1. Cut the replacement Rear Lock
Pillar in corresponding locations to
fit the remaining original panel. The
sectioning joint should be trimmed
to allow a gap of one-and-one-half
times the metal thickness at the
sectioning joint.
2. Create a 50␣ mm (2␣ in.) backing
plate from the unused portion of the
service part. Trim the backing plate
as necessary to fit behind the
sectioning joint.
3. Perform additional sectioning
procedures as necessary. Refer to
Windshield Sectioning; Front Lower
Pillar Sectioning; Center Pillar; and
Rocker Sectioning.
4. Drill 8 ␣ mm (5/16␣ in.) plug weld
holes along the sectioning cut on
the remaining original part.
5. Drill 8␣ mm (5/16␣ in.) plug weld
holes in the service panel as
necessary in the locations noted
from the original panel and along
the sectioning cut.
CAUTION: FOAM SEALERS ARE
FLAMMABLE AND SHOULD BE
REMOVED FROM ALL WELD
LOCATIONS.
6. Prepare the mating surfaces, as
necessary.
7. Apply weld-through primer to all
bare metal surfaces.
8. Fit the backing plate halfway into
the sectioning joint, clamp and plug
weld to the vehicle.
BACKING PLATE
50 MM
(2 IN)
100 MM
(4 IN)
PLUG WELDS
13 MM
(1/2 IN)
ORIGINAL PANEL
BACKING PLATE
