Chevrolet 2007 Express 2007 Express Owner's Manual page 353

Dual Rear Wheels
If your vehicle has dual rear wheels, always
use one of the correct rotation patterns shown
here when rotating your tires.
When you install dual wheels, be sure that 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 on the
Tire and Loading Information label. See Loading
Your Vehicle on page 259. Make certain that
all wheel nuts are properly tightened. See "Wheel
Nut Torque" under Capacities and Specifications
on page 394.
CAUTION:
{
Rust or dirt on a wheel, or on the parts
to which it is fastened, can make wheel
nuts become loose after time. The wheel
could come off and cause an accident.
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 needed, to get all the
rust or dirt off. See Changing a Flat Tire
on page 362.
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