GMC 2003 Sierra - Manual (Page 451)

II your vehicle has dual ^ear iA/hee1s and the tread design
tor Ihe front tires is ditferent rnom the dual r&ar tires,
always use Ihe conrecl rolalion pattern shewn here when
rotating your tires. The dual tires are rotated as a pair,
and the inside rear (ires became the oufside rear trres.
When you Install dual wheats, he sure the vent holes In
the inner and outer wheels on each side are lined up.
After the tires have been rotated, adjust the front and
rear inflation pressures as shown cm ihe
Certificalion/TIre label. Mal(e certain that all wheel nuts
are properly tightened. See "Wheel Nu! Torque"
under Capaatle^ and Spenficaiians an page 5-120.
A CAUTION:
Rust or dirt on a wheel, or on th« parts to
which И Is taslened, can make wheel nuts
becorme loose after a lime. The wheel could
coma off and cause an accident. When you
chairge 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 afl the rust or dirt off. See “Changing a Ftat
Tire" in the Index.