2010 GMC Savana 2500 Cargo Owner's Manual - Page 332

Single Rear Wheels Dual Rear Wheels If your vehicle has single rear wheels, always use the correct rotation pattern shown here when rotating the vehicle's tires. Do not include the spare tire in the tire rotation. If the vehicle has dual rear wheels and the tread design for the front tires is the same as the rear tires, always use one of the correct rotation patterns shown here when rotating the tires. 6-70