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Instructions
WARNING!Carefully follow these tire changing warnings to help
prevent personal injury or damage to your vehicle:
• Always park on a firm, level surface as far from the
edge of the roadway as possible before raising the
vehicle.
• Block the wheel diagonally opposite the wheel to be
raised.
• Apply the parking brake firmly before jacking.
• Never start the engine with the vehicle on a jack.
• Do not let anyone sit in the vehicle when it is on a jack.
• Do not get under the vehicle when it is on a jack.
• Only use the jack in the positions indicated.
• If working on or near a roadway, be extremely careful
of motor traffic. 1. Remove the spare wheel, jack, and tools from storage.
2. Using the wheel wrench, loosen, but do not remove,
the wheel nuts by turning them counterclockwise one
turn while the wheel is still on the ground.
3. When changing the front wheel, assemble the jack
drive tube to the jack and connect the drive tube to the
extension tube. Place the jack under the axle as close to
the tire as possible with the drive tubes extending to the
front. Connect the jack tube extension and wheel wrench.374 WHAT TO DO IN EMERGENCIES
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4. By rotating the wheel wrench clockwise, raise the
vehicle until the wheel just clears the surface.
WARNING!Raising the vehicle higher than necessary can make
the vehicle unstable and cause an accident. It could
slip off the jack and hurt someone near it. Raise the
vehicle only enough to remove the tire.
5. Remove the wheel nuts and pull the wheel off. Install
the spare wheel and wheel nuts with the cone shaped end
of the nuts toward the wheel on single rear wheel (SRW)
models. On dual rear wheel models (DRW) the lug nuts
are a two piece assembly with a flat face. Lightly tighten
the nuts. To avoid risk of forcing the vehicle off the jack,
do not fully tighten the nuts until the vehicle has been
lowered. 6. Using the wheel wrench, finish tightening the nuts
using a crisscross pattern. Correct nut tightness is 135 ft.
lbs. (183 N·m) torque for single rear wheel (SRW) models
and 145 ft. lbs. (197 N·m) for dual rear wheel models. If in
doubt about the correct tightness, have them checked
with a torque wrench by your dealer or at a service
station.
WARNING!A loose tire or jack thrown forward in a collision or
hard stop could injure someone in the vehicle.
Always stow the jack parts and the extra tire and
wheel in the places provided.376 WHAT TO DO IN EMERGENCIES
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7. Install wheel center cap and remove wheel blocks. Do
not install chrome or aluminum wheel center caps on the
spare wheel. This may result in cap damage.
8. Lower the jack to its fully closed position. If the jack
will not lower by turning the dial (thumb wheel) by
hand, it may be necessary to use the jack drive tube in
order to lower the jack. Stow the replaced tire, jack, and
tools as previously described.
9. Adjust the tire pressure when possible.
NOTE: Do not oil wheel studs. For chrome wheels, do
not substitute with chrome plated wheel nuts.
Hub Caps/Wheel Covers
The hub caps must be removed before raising the vehicle
off the ground. For single rear wheel (SRW) models, use the blade on the
end of the lug wrench to pry the hub cap off. Insert the
blade end into the pryoff notch and carefully pop off the
hub cap with a back and forth motion.
On models with dual rear wheels (DRW), you must first
remove the hub caps. The jack handle driver has a hook
at one end that will fit in the pry off notch of the rear hub
caps. Position the hook and pull out on the ratchet firmly.
The hub cap should pop off. The wheel skins can now be
removed. For the front hub cap on models use the blade
on the end of the lug wrench to pry the caps off. The
wheel skin can now be removed. WHAT TO DO IN EMERGENCIES 377
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Slots in the wheels will assist in properly orienting the
inner and outer wheels. Align these slots when assem-
bling the wheels for best access to the tire valve on the
inner wheel. The tires of both dual wheels must be
completely off the ground when tightening to insure
wheel centering and maximum wheel clamping. Dual wheel models require a special heavy-duty lug nut
tightening adapter (included with the vehicle) to cor-
rectly tighten the lug nuts. Also, when it is necessary to
remove and install dual rear wheels, use a proper vehicle
lifting device.
NOTE: When installing a spare tire as part of a dual rear
wheel end combination, the tire diameter of the two
individual tires must be compared. If there is a significant
difference, the larger tire should be installed in a front
location. Correct direction of rotation for dual tire instal-
lations must also be observed.
These dual rear wheels should be tightened as follows: WHAT TO DO IN EMERGENCIES 379
6
Page 381 of 532
wheel. The nuts should then be tightened to recom-
mended torque. Tighten the nuts to final torque in
increments. Progress around the bolt circle, tightening
the nut opposite to the nut just previously tightened until
final torque is achieved. Recommended torques are
shown in the following chart.
Disc
Wheels Type Nut Stud Size Torque
Ft. Lbs. Torque
Newton
Meters
Cone 9/16-18 120-150 160-200
Flanged 9/16-18 130-160 190-220
To Stow The Flat Or Spare (If equipped)
Refer to Upfitters Body Builders Guide for information
on stowing your spare tire (If equipped). HOISTING
A conventional floor jack may be used at the jacking
locations, refer to the graphics that show jacking loca-
tions. However, a floor jack or frame hoist must never be
used on any other parts or the underbody.
CAUTION!Never use a floor jack directly under the differential
housing of a loaded truck or damage to your vehicle
may result. WHAT TO DO IN EMERGENCIES 381
6
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Maintenance Schedule
Miles 7,500 15,000 22,500 30,000 37,500
(Kilometers) (12 000) (24 000) (36 000) (48 000) (60 000)
[Months] [6] [12] [18] [24] [30]
Change engine oil and engine oil filter. X X X X X
Lubricate Front Drive Shaft Fitting (4X4). X X X X X
Rotate tires. X X X X X
Check spare tire for proper pressure and correct
stowage. X X XXX
Lubricate outer tie rod ends. X X X X X
Check transfer case fluid level (4X4). X
Change front and rear axle fluid (4X4). X X
Change automatic transmission fluid. X
Replace fuel filter element. X X
Inspect brake linings. X
Inspect and adjust parking brake if necessary. X
Inspect fan hub. X476 MAINTENANCE SCHEDULES
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Miles 45,000 52,500 60,000 67,500 75,000
(Kilometers) (72 000) (84 000) (97 000) (109 000) (121 000)
[Months] [36] [42] [48] [54] [60]
Change engine oil and engine oil filter. X X X X X
Lubricate Front Drive Shaft Fitting (4X4). X X X X X
Rotate tires. X X X X X
Check spare tire for proper pressure and correct
stowage. X X XXX
Lubricate outer tie rod ends. X X X X X
Drain and refill transfer case fluid (4X4). X
Change front and rear axle fluid (4X4). X X X
Change automatic transmission fluid. X
Change manual transmission fluid. X
Flush and replace engine coolant at 60 months, if
not replaced at 100,000 miles (160 000 km). X
Inspect drive belt, replace as necessary. X X
Replace fuel filter element. X X X478 MAINTENANCE SCHEDULES
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Miles 82,500 90,000 97,500 100,000 105,000
(Kilometers) (133 000) (145 000) (157 000) (161 000) (169 000)
[Months] [66] [72] [78] [84]
Change engine oil and engine oil filter. X X X X
Lubricate Front Drive Shaft Fitting (4X4). X X X X X
Rotate tires. X X X X X
Check spare tire for proper pressure and correct
stowage. X X XXX
Lubricate outer tie rod ends. X X X X X
Flush and replace engine coolant, if not replaced at
60 mos. X
Check transfer case fluid level (4X4). X
Change front and rear axle fluid (4X4). X X
Change automatic transmission fluid. X
Inspect drive belt, replace as required.* X X
Inspect fan hub. X
Inspect damper. X480 MAINTENANCE SCHEDULES
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