Wheel Replacement - GMC T-Series 1999 Owner's Manual

CAUTION:
Rust or dirt on a wheel, or on the parts to which
it is fastened, can make the wheel nuts become
loose after a time. The wheel could come off and
cause an accident. When you change a wheel,
remove any rust or dirt from the places where the
wheel attaches to the vehicle. In an emergency,
you can use a cloth or paper towel to do this; but
be sure to use a scraper or wire brush later, if you
need to, to get all the rust or dirt off.
How Often to Check
Wheel tightness is so important you should have a
technician check nut tightness on all wheels, with a
torque wrench, every 1,000 miles (1 600 km).
When your vehicle is new, or when a wheel or fastener
is new, you should have a technician tighten the wheel
stud nuts with a torque wrench at 100, 500 and
1,000 miles (160, 800 and 1 600 km).
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Wheel Replacement

Replace any wheel that is bent, cracked or badly rusted.
If wheel nuts keep coming loose, replace the wheel. If
the wheel leaks air, replace it.
Your dealer will know the kind of wheel you need.
CAUTION:
A leaking wheel could fail without warning. A
wheel designed for tubeless tires could be leaking
because it is damaged. Don't use an inner tube or
some other thing to try to stop the leaking. Get a
new wheel of the proper type.
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