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Tire Tread Wear Indicator
Tire Damage and Repair
Tires with cuts, splits or cracks deep enough
to expose the fabric, should be removed from
service. Bulges usually indicate internal damage,
and the tire should be removed . Tires with ques-
tionable damage should be removed from the
wheel and examined by an expert .
If an air loss occurs while driving, do not at-
tempt to drive on the deflated tire more than is
necessary to stop safely. Driving even a short
distance can damage a tire beyond repair.
Temporary repairs, such as "blowout" patches
or any repair made from the outside of the tire
should not be made except in emergencies . Such
"stop-gap" devices as plugs and aerosol-type
sealants are good for not more than 100 miles of
driving at speeds not over 50 MPH . A perma-
nent vulcanized repair, plug or patch applied
from inside the tire, should be made as soon as
possible . Also, the installation of an inner tube
in a damaged tubeless tire is not a recommended
repair procedure.
Replacement Tires
When replacing tires, only the size (8 .75-
16 .5), load range ("D"), construction type (bias-
ply polyester cord, or bias-ply steel belted) are
recommended for installation on the vehicle .
CAUTION
Radial tires are not recommended for
installation
on
the
vehicle .
Severe
damage
and
possible injury
could
result .
Use of any other tire may seriously affect ride,
handling, speedometer /odometer calibration, ve-
76
hicle ground clearance and tire clearance to the
body and chassis . The following also should be
considered when replacing tires :
To achieve best all-around vehicle perform-
ance, bias-ply and bias-ply steel belted tires
should not be mixed on the same vehicle .
It is recommended that new tires be installed
in pairs opposite each other (preferably the
front wheels) .
When replacing only one tire, it should be
paired with the tire having the least wear, to
equalize braking traction.
Replacement Wheels
Wheels must be replaced if they become bent,
are heavily rusted, if the lug nuts won't stay
tight, or if they leak air . Straightening bent
wheels or using inner tubes in leaking wheels
are not recommended repair procedures .
When replacing wheels for any reason, care
should be taken to insure that the wheels are
equivalent to those removed in load capacity,
diameter, rim width, and offset. Correct replace-
ment wheels can be obtained from your GMC
MotorHome dealer .
Use of any other size or type wheel may ad-
versely affect wheel and wheel bearing life,
brake cooling and stopping ability, headlamp
aim, speedometer-odometer accuracy, bumper
height, vehicle ground clearance and tire clear-
ance to the body and chassis .
The use of used wheels is also not recom-
mended ; if they have been run overloaded or
under other severe operating conditions for ex-
tended periods, the wheel's life may have been
greatly shortened.
Tire Warranty
Tires are warranted by the tire manufacturers
as covered in the New Vehicle Warranty folder .
Tire Traction
A decrease in driving, cornering, and braking
traction occurs when water, snow, ice, gravel, or
other material is on the road surface. Driving
practices and vehicle speed should be adjusted to
the road conditions .
When driving on wet or slushy roads, it is
possible for a wedge of water to build up be-
tween the tire and road surface . This phenome-
non, known as hydroplaning, may cause partial
or complete loss of traction, which adversely
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