GMC 1996 Sierra Owner's Manual page 301

r T l
I I
If your vehicle has dual rear wheels and the load range
and tread design for your front tires is the same as your
rear tires. always use one of the correct rotation patterns
shown here
when
rotating your tires.
1 1
If your vehicle has dual rear
Q
wheels and the load range
or tread design for your
~
front tires is different from
your rear tires, always use
the correct rotation pattern
shown here when rotating
your tires.
The dual tires are rotated as a pair, and the inside rear
tires become the outside rear tires.
When you install dual wheels, be 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 on the Certificatiomire
label. Make certain that all wheel nuts are properly
tightened. See "Wheel Nut Torque" in the Index.