28
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2. Check to make sure RH and LH columns are 
square and perpendicular to the extension 
plate by measuring dimensions at the top and 
bottom of the columns, and dimensions A and 
B, as shown in FIG. 28-1. Squareness is ac-
ceptable when dimensions A and B are within 
1/4” of each other, and top and bottom column 
dimensions are as shown in FIG. 28-1. 
NOTE: Before welding Liftgate to vehicle frame, check squareness to make sure 
columns are perpendicular to extension plate.
RH MOUNTING 
PLATE
LH MOUNTING 
PLATE
CHECKING IF COLUMNS ARE SQUARE
(REAR OF LIFTGATE SHOWN)
FIG. 28-1
STEP 3 - POSITION LIFTGATE - Continued
FORKLIFT
EXTENSION 
PLATE
A
B
METHOD 2 - WELD BOLT-ON LIFTGATE TO BODY - Continued
96-1/8” + 3/16” /- 1/16” (96” WIDE VEH)
101-1/8” + 3/16” /- 1/16” (102” WIDE VEH)
(DIMENSIONS TAKEN FROM 
OUTSIDE EDGE OF COLUMNS)
97-1/8” + 3/16” /- 1/16” (96” WIDE VEH)
102-1/8” + 3/16” /- 1/16” (102” WIDE VEH)
(DIMENSIONS TAKEN FROM 
OUTSIDE EDGE OF COLUMNS)