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3 ’98-’99 Frontier – Kit# 4083
screws are accessed through the wheel well. Remove the
four bolts that mount the front bumper to the frame.
Remove the bumper from the vehicle.
13. Remove the tabs that hold the fender well flaps to
frame. This will prevent flaps from being damaged while
lifting.
14. Remove the screws that mount the scuff plate to the
door jamb area on both sides of the vehicle. Remove the
kick panels from both sides. Place the manual
transmission in neutral. Remove the screws that mount
the shift boot to the floorboard. Pull the boot back to
expose the top of the transmission. Remove the c-clip that
holds the transmission shift lever in the top of the
transmission. Remove the spacer washer that is under the
C-clip. Unbolt the transfer case shifter from the transfer
case. Remove both levers from the vehicle. You may
want to wrap a rag around the bottom of the shift lever to
prevent any oil from dripping on the carpet. Pull the
carpeting back to expose the two body mounting bolt
access covers. Remove the plastic access covers from
the floorboard and discard. Be sure that the transmission
is in neutral. Remove the shift lever from the transmission.
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.
15. 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
vent hose to the tank. Remove the entire filler neck and
hose assembly from the vehicle.
16. 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.
17. 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.
18. 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 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.
19. Repeat step #18 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 and tighten
securely. Remove cab-mounting bolts, one at a time,
apply Loctite®, reinstall bolt and tighten to vehicle torque
specifications.
20. 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 and 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.
21. Repeat step # 20 for the driver’s side of the bed.
Realign the bed to the cab. Refer to the measurements