Chevrolet T-Series Owner's Manual page 239

CAUTION:
{
Never use oil or grease on studs or the
threads of the wheel nuts. If you do, the
wheel nuts might come loose and the
wheel could fall off, causing a crash.
CAUTION:
{
If wheel studs are damaged, they can
break. If all the studs on a wheel broke, the
wheel could come off and cause a crash. If
any stud is damaged because of a
loose-running wheel, it could be that all of
the studs are damaged. To be sure, replace
all studs on the wheel. If the stud holes in a
wheel have become larger, the wheel could
collapse in operation. Replace any wheel if
its stud holes have become larger or
distorted in any way. Inspect hubs and
CAUTION: (Continued)
CAUTION: (Continued)
hub-piloted wheels for damage. Because
of loose running wheels, piloting pad
damage may occur and require
replacement of the entire hub, for proper
centering of the wheels. When replacing
studs, hubs, wheel nuts or wheels, be
sure to use GM original equipment parts.
CAUTION:
{
Rust or dirt on a wheel, or on the parts to
which it is fastened, can make wheel nuts
become loose after a time. The wheel could
come off and cause a crash. When you
change a wheel, remove any rust or dirt
from places where the wheel attaches to
the vehicle. In an emergency, you can use a
cloth or a 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.
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