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DRILL OUT FRAME RIVET
BOTH SIDE
CENTER SECTION
M16 X 2.0 CL10.9
LOCKNUT
NOTE:
General assembly - loosely install side brackets on vehicle (this page); install center section assembly and
tighten all fasteners to proper specifications (page 1)
85-13 GMC / CHEVY 3500 CAB AND CHASSIS ONLY (34" FRAME)
1. Raise and clamp hitch side brackets into position, by centering the forward attachment hole over frame
rivet and flush with outside of frame.
2. Using the side bracket as a template, mark the frame at the center of each remaining attachment hole and
rivet.
Warning; Do not drill into fuel or electrical lines, take appropriate precaution before step 3.
3. Remove the side bracket and drill 9/16" holes in frame and frame rivet. Rivet will be removed and its hole is
used to attach hitch. Hint; a small pilot hole is recommended.
4. Install side bracket loosely with the fasteners shown above.
5. Raise center section of hitch for vehicle requirements. Install center section with (8) 9/16" x 1-3/4" bolts,
washers, and flanged locknuts.
6. Tighten hitch side brackets to center section. Tighten hitch side brackets to truck frame.
TRUCK FRAME
RAIL
M16 X 2.0 BOLT
CAB AND CHASSIS ONLY
GMC / CHEVY 3500
TOOLS REQUIRED
9/16", 3/4" SOCKET
21mm, 24mm SOCKET
11/16" DRILL BIT
TORQUE WRENCH
SAFETY GLASSES
SIDE BRACKET
SEE FRONT PAGE FOR CENTER
SECTION FASTENERS
M16 X 2.0 CL10.9
LOCKNUT
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