Wheel Replacement - Chevrolet 1979 Light Duty Truck Owner's Manual

TREAD WEAR INDICA TORS
2. Your tire tread or sidewall is cracked, cut, or snagged deep enough
to expose the cord or fabric.
3.
Your tire has a bump, bulge, or split.
4. Your tire sustains a puncture, cut, or other injury that can't be
correctly repaired because of the size or location of the injury.

Wheel Replacement

Wheels must be replaced if they become damaged (for example: bent,
heavily rusted, leak air) or if wheel nuts often become loose. Do not
use bent wheels which have been straightened, and do not use inner
tubes in leaking wheels which are designed for tubeless tires. Such
wheels may have structural damage and could fail without warning.
The wheels originally equipped on your vehicle will provide optimum
life up to the maximum load and inflation pressures shown in the
Wheel Code and Limits Chart. Maximum loads, maximum inflation
pressures, wheel identification codes, and wheel sizes are stamped on
each wheel. Service tested and approved wheels are available from
y.our authorized dealer. When obtaining wheels for any reason from
any other source, the replacement wheels should be equal in load
capacity, inflation pressure capacity, diameter, width, offset and
mounting configurations to those originally installed on your
vehi c le. "
A wheel of the wrong size or type may adversely affect load carrying
capacity, wheel and bearing life, brake cooling, speedometer/odometer
calibration, stopping ability, headlight aim, bumper height, vehicle
ground clearance, and tire clearance to the body and chassis.
Replacement with ''used" wheels is not advised: they may have been
subjected to harsh treatment or very high mileage and could fail
without warning.
NOTICE: The use of wheels and/or tires with higher load carrying limits
than originally equipped on your vehicle does not in itself increase the
GAWR or the GVWR of the vehicle.
Wheels having diameters ranging from 16 inches through 19.5 inches
that have been certified for
"radial" stamped on the rim. Wheels in the 16 inch through 19.5-inch
diameter range without the "radial" identification stamp are
be used with radial tires. Because of the different stresses exerted by
radia l tires, these wheels could become fatigued and fail without
warn ing.
Prop er replacement wheels can be obtained from your dealer.
Sill
lOAD lANGE
CONSTRUCTUON
TPC SPIC.NO.
radial tire application
5-19
LOAD RANGE
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