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23
STEP 2 - WELD LIFTGATE TO VEHICLE - Continued
6. Weld the mounting plates to 
vehicle frame as shown in 
FIG. 23-1. Remove clamps.
5. Clamp both mounting plates 
to vehicle frame. Check 
the distance between bed 
level and top of main frame. 
Maintain the distance shown 
in FIG. 23-1. 
Prevent damage to hydraulic hoses. If welding next to hydraulic hoses, use a 
protective cover such as a welding blanket to cover the hoses.
CAUTION
To protect the original paint system if equipped, a 3” wide area of paint must 
be removed from all sides of the weld area before welding.
CAUTION
CAUTION
When using an electric welder, connect the welder ground to one of the parts 
being welded, as close to the weld as possible. Failure to comply could result 
in damage to cylinders and electrical parts.
VEHICLE FRAME CUTOUT
(TYPICAL TRUCK 
FRAME SHOWN)
MOUNTING
PLATE
BED LEVEL
WELD TO VEHICLE FRAME AND MAIN FRAME
(RH SIDE SHOWN)
FIG. 23-1
2” LG. 4 PLACES
(TYPICAL - RH & LH 
MOUNTING PLATES)
5/16”
* TOLERANCE IS +/- 1/4”
* 23-7/8” (GPTWR-25/-3)
* 22-3/8” (GPTWR-4/-5)
MAIN 
FRAME