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1988-98 Chev/GMC 2500 & 3500, 1999-00 3500
1988-1998 Chevrolet/GMC 2500 & 3500 Series,
1999-2000 Chev/GMC 3500 Series Undercarriage
12-1/2"
WARNING: Most new trucks are
equipped with driver and passenger’s
side air bags. DO NOT remove, disable, or
reposition any sensory equipment related to
the safe operation of the air bags.
ALWAYS follow the vehicle manufacturer’s
recommendations for installing snowplowing
equipment.
Failure to comply with the above warning may
result in serious injury or death.
CAUTION: If your vehicle is equipped
with oversize tires, they may come
into contact with the undercarriage hanger
plates when turning the vehicle.
The problem may be resolved by setting the
steering stops on the vehicle. If this does not
correct the problem, the original tires will need
to be installed on the vehicle.
The recommended push beam height for all
undercarriage assemblies is 12-1/2" from the
center of the push beam to level ground. DO NOT
exceed 14" in height for any undercarriage.
1.
Begin the assembly by removing the three metric bolts and washers that
attach to the CORE SUPPORT MOUNT BRACKET and TRUCK FRAME
RAIL on both sides of the truck. Discard all bolts and washers.
2.
Position the DRIVER’S SIDE HANGER PLATE on the outside of the truck
frame rail and core support mount bracket. Secure three M14 x 2.0 x 45
(8.8 Gr.) bolts with M14 washers through each of the holes.
Note: Each
hole contains a welded nut on the inside of the truck frame rail eliminating
the need for new hardware. Repeat the same installation for the
PASSENGER’S SIDE HANGER PLATE.
3.
Mount the PUSH BEAM to each hanger plate using four 1/2"-13 x 1-1/2"
bolts and top lock nuts.
Note: The proper height for the push beam is
approximately 12-1/2" from the ground to the center of the beam.
4.
Position the PUSH BEAM SUPPORT ARMS on the inside of the mount-
ing brackets at the rear of the push beam. Secure each arm with two
1/2"- 13 x 1-3/4" bolts and 1/2" top lock nuts.
5.
Secure the push beam support arms to the TRUCK FRAME CROSS-
MEMBER with two 5/8"-11 x 2" bolts with washers and 5/8" nuts.
Note: The washers and nuts need to be positioned inside of the truck
frame crossmember. Access to the interior of the crossmember can be
found either behind the crossmember (older models) or to either side
of it (newer models) depending on the date of manufacture.
6.
Once all of the undercarriage plates have been positioned and the proper
push beam height is set, proceed to tighten all top lock nuts. Reference
the chart on page 4 for maximum bolt torque.
7.
Position the LIGHT TOWER into the accepting pockets on the push beam
and tighten using two 1/2"-13 x 1-1/4" bolts with washers. Secure each
bolt with a 1/2" top locking nut. Mount each PLOW HEADLIGHT to the
light tower with the hardware kit provided.
Complete the assembly by plugging the connectors from the lights into the
connectors on the vehicle wire harness.
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