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TIRES/WHEELS (Continued)
STANDARD PROCEDURE - TIRE AND WHEEL
ROTATION
NON-DIRECTIONAL TREAD PATTERN TIRES
Tires on the front and rear axles operate at differ-
ent loads and perform different functions. For these
reasons, they wear at unequal rates, and tend to
develop irregular wear patterns. These effects can be
reduced by timely rotation of tires. The benefits of
rotation are especially worthwhile. Rotation will
increase tread life, help to maintain mud, snow, and
wet traction levels, and contribute to a smooth, quiet
ride.
The suggested rotation method is the forward-cross
tire rotation method (Fig. 11). This method takes
advantage of current tire industry practice which
allows rotation of radial-ply tires. Other rotation
methods may be used, but may not have all the ben-
efits of the recommended method.
NOTE: Only the 4 tire rotation method may be used
if the vehicle is equipped with a low mileage or tem-
porary spare tire.
Fig. 11 Forward-Cross Tire Rotation Method
DIRECTIONAL TREAD PATTERN TIRES
Some vehicles are fitted with special high-perfor-
mance tires having a directional tread pattern. These
tires are designed to improve traction on wet pave-
ment. To obtain the full benefits of this design, the
tires must be installed so that they rotate in the cor-
rect direction. This is indicated by arrows on the tire
sidewalls.
When wheels and tires are being installed, extra
care is needed to ensure that this direction of rota-
tion is maintained.
Refer to Owner's Manual for rotation schedule.
REMOVAL - TIRE AND WHEEL ASSEMBLY
(1) Raise the vehicle so the tires clear ground
level. (Refer to LUBRICATION & MAINTENANCE/
HOISTING - STANDARD PROCEDURE)
(2) If the vehicle is equipped with wheel covers,
remove the cover from the wheel by prying it off with
an appropriate wheel cover removal tool.
(3) Remove the wheel mounting (lug) nuts from
the studs.
(4) Remove the tire and wheel assembly from the
hub.
INSTALLATION - TIRE AND WHEEL ASSEMBLY
(1) To install the tire and wheel assembly, first
position it properly on the studs and hub mounting
surface using the hub pilot as a guide.
CAUTION: Never apply oil or grease to the wheel
mounting studs or nuts.
(2) Install and progressively tighten the five wheel
mounting (lug) nuts in the proper sequence (Fig. 12)
until half the specified torque is reached. Repeat the
sequence, tightening the wheel mounting (lug) nuts
to a final torque of 135 N·m (100 ft. lbs.).
Fig. 12 Wheel Nut Tightening Sequence
(3) If equipped with wheel covers, align the valve
stem notch in the wheel cover with the valve stem on
the wheel. By hand, tap the wheel cover onto the
wheel until it is fully seated against the wheel.
(4) Lower the vehicle.
TIRES/WHEELS
22 - 7
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