1998 GMC Suburban Owner's Manual - Page 280

5. Remove all the wheel nuts and take off the flat tire. Front Position Rear Position 1 6. 4. With UP on the ratchet facing you, raise the vehicle by rotating the ratchet and wheel wrench to the right. Raise the vehicle far enoughoff the ground so there is enough room for the spare tire to fit. Remove any rust or dirt from the wheel bolts, mounting surfaces and spare wheel. 5-30