Chevrolet Silverado 4500HD 2022 Owner's Manual page 313

Replacement Tire Size and Load Rating
Warning
To prevent property damage, personal
injury, and/or death, do not load tires
beyond their rated capacity as this
decreases tire life, requiring more
frequent replacement of tires.
Overloading creates an unsafe condition
that may result in sudden air loss from a
tire failure resulting in a crash.
The Tire/Certification Label is typically found
on the driver-side door frame of the vehicle.
It indicates the size of the original
equipment tires installed on each axle of the
vehicle.
The load rating of the tires installed on your
vehicle at the time of production is at or in
excess of the Gross Axle Weight Rating
(GAWR) on the Tire/Certification Label.
When replacing the tires be sure the
replacement tire load rating (listed
separately in pounds and kilograms on the
tire sidewall for single or dual applications)
multiplied by the number of tires on that
axle is equal to or higher than the specified
listed Steer Axle or Drive Axle GAWR. Failure
to do so will adversely affect maximum
load-carrying capacity. Tires with the same
size specifications do not always have the
same load specification. See Vehicle Load
Limits 0 196.
Dual Tires Matching
Dual tires should be matched using tires of
equivalent size. Tires which differ more than
6 mm (1/4 in) in diameter or 19 mm (3/4 in)
in circumference should not be mounted on
the same dual wheel assembly.
Wear
Radial tires can exhibit three types of
normal wear patterns: even, erosion,
or chamfer.
Even wear is a sign that the tire is being
properly used and maintained.
Erosion wear has also been called rolling
wear, channel, or river wear. Erosion wear is
found more often at free rolling tires. This is
an indication that the tire is being used in a
slow wearing operation. What happens is
that the belt plies are held very rigid and
the tread is not allowed to distort as it
passes through the contact area. Wear will
only occur at the edge of the tread. No
corrective action is required. If erosion gets
to be 2 mm (1/16 in) or more, the tire may
be rotated to a drive axle.
Vehicle Care
Chamfer or shoulder wear with tires inflated
properly, is a normal tendency of most
radial tire designs. If both inside and outside
shoulders are wearing evenly around the
tire, no further action is required.
Overinflation is not effective in correcting
this effect.
Irregular Wear
If irregular wear is present, check the axle
alignment, tire pressure, wheel balance,
shock and suspension component condition,
and wheel bearing end play.
This condition not only shortens tire life, but
will adversely affect the handling of your
vehicle.
Rotating tires from one wheel position to
another is a way often used to even out
many types of irregular wear or to avoid it
altogether. See Tire Rotation 0 308.
Irregular wear can be minimized by:
Using the right inflation pressure for the
load being carried.
Maintaining proper front wheel alignment
especially toe-in to specifications.
Maintaining proper tire and wheel
balance.
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