NISSAN 4073 User Manual

Page 3

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WARNING

Use extreme caution when working near fuel lines and fuel tank.
Clean up spilled fuel immediately. Any spark could cause an
explosion or fire resulting in serious personal and property
damage.


18. Remove the screws that mount the fuel filler neck to the
body. Loosen the hose clamp that mounts the filler hose to the
fuel tank. Loosen the clamp that mounts the large vent hose to
the tank. There are two other hoses attached to the filler neck.
They are attached to a small box on top of the filler neck.
Looking at the filler neck from the outside of the vehicle, detach
the hose on the right from the filler neck. It will be reattached
after the lifting operation is complete. Remove the hose on the
left from the fuel tank. Remove the entire filler neck and hose
assembly from the vehicle.

19. Disconnect the license plate lights from the rear bumper.
Remove the six bolts that mount the rear bumper to the frame.
Remove the bumper from the vehicle.

20. Measure the distance between the cab and the bed. Record
this measurement to insure proper alignment of the cab and bed
after the lifting operation has been completed. Remove the bolts
at the rear cab mount that mount the body to the side of the rear
cab mount. There are two bolts inserted from the inside of the
frame mount and are threaded into the body. There are two more
bolts that are inserted from the bottom and thread into the
mounting pad. When the rear cab bolt is removed, the bracket
can be removed. Loosen, but do not remove all six cab-mounting
bolts. They are located as follows; in the front fender well, in the
front floorboard, and at the rear of the cab screwing up into the
cab. The front two mounting bolts are installed from the top and
the rear bolt is installed from the bottom.

WARNING

Failure to replace the OEM body mounting hardware (except
mounting bolts) in the stock locations could result in damage to
the vehicle and possible personal injury.


21. Using a hydraulic jack and a wooden block, slowly lift the
passenger side of the cab just high enough to put the spacers on
the mounting pads. Continually check for any hoses, wires, etc.
to be sure that everything is flexing properly and not binding. Be
especially careful of the a/c hose at the firewall and the at the
core support. Place the spacer block on top of the mounting pad.
Using a 3/8" washer in conjunction with the stock washer, install
the 7/16" x 7" bolts at the front two mounts (core support and
front floorboard) and the 10mm x 180mm bolt at the rear cab
mount. For the front two mounts, the 3/8” washer should be
installed on the bolt. The bolt should then be inserted from the
top through the stock top washer, through the body, the spacer,
the factory top bushing, the frame perch, the bottom factory
bushing, the stock bottom washer and inserted into the 7/16”
nylock nut provided with the kit. The 3/8” washer should be
installed on the 10mm bolt, the bolt should be inserted from the
bottom through the outside support bracket, the bottom stock

bushing, the frame perch, the stock top bushing, the block, and
threading into the nut that is captured inside the body. Reinstall
the two bolts that mount the outside support bracket to the
bottom of the frame perch. Do not tighten any of the bolts at this
time.

22. Repeat step #21 for the driver’s side of the cab. Adjust the
cab to bed clearance. Install the outside support plates to the cab
using the stock bolts. Attach the outside support plates to the
stock outside support brackets using two 7/16” x 1” bolts, four
7/16” SAE washers, and two 7/16” nylock nuts on each side of
the cab. Do not tighten the cab-mounting bolts at this time.

23. Loosen, but do not remove all six bed-mounting bolts.
Remove the mounting bolts from the passenger side of the bed
only. Using a hydraulic jack and a wooden block slowly lift the
passenger side of the bed just high enough to place the spacer
blocks on the frame. Install the new mounting bolts in the
following positions; ½ x 5” at the front bed mount, ½” x 4 ½” at
the middle bed mount, and ½ x 5 1/2" at the rear bed mount. The
bolts should have a ½” USS (large) washer installed, then the
bolt should be inserted through the thick rubber bushing, through
the frame, through the thin rubber bushing, through the spacer,
and through the bottom support rail of the bed. Install a ½” USS
washer and nylock nut on each bolt. Do not tighten at this time.

24. Repeat step # 23 for the driver’s side of the bed. Realign the
bed to the cab. Refer to the measurements made earlier. One by
one remove each body-mounting bolt. Apply the loctite

®

adhesive to the bolt according to the loctite

® application

instructions. Tighten each body mounting bolt to vehicle torque
specifications. Refer to vehicle service manual for torque
specifications. Repeat this step for all cab and bed mounting
bolts.

WARNING

Failure to install the steering extension properly could result in
loss of steering causing damage to the vehicle and possible
personal injury.


25. Install the steering extension into the lower coupler of the
steering shaft. Be sure that the extension is installed so the
mounting bolt will slide across the flat on the steering extension.
Install the stock retaining bolt in the steering shaft. If the bolt
will not easily slide across the flat on the steering extension, the
extension has been installed incorrectly. Do not tighten the
retaining bolt at this time. Extend the mark on the lower part of
the steering shaft down onto the extension. Install the upper part
of the steering shaft into the upper coupler inside the engine
compartment. Be sure to align the marks made earlier. Install the
stock retaining bolt in the upper coupler. Align the mark on the
steering extension with the mark on the gearbox. Install the
steering extension on the gearbox splined shaft. Install the
retaining bolt in the steering extension. Do not tighten the
retaining bolt at this time. Be sure that all marks are properly
aligned and that there is ample engagement at all unions. Apply
the loctite

® adhesive to the bolt according to the loctite®

application instructions. Tighten all steering hardware securely.

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