1998 GMC Suburban Owner's Manual - Page 278

If your vehicle has wheel nut caps, use the wheel wrench and ratchet to remove them. Turn the wheel wrench to the left, with DOWN facing you, to remove the wheel nut caps. Then take off the hub cap. Removing the Flat Tire and Installing the Spare Tire 1. Use the ratchet and wheel wrench to loosen a l l the wheel nuts. Turn the wheel wrench to the left, with DOWN facing you, to loosen the wheel nuts. Don't remove the wheel nuts yet. If the wheel also has a trim ring, use the wheel wrench to pry along the edge and remove it. If the wheel has a smooth center piece, place the wheel wrench in the slot on the wheel and gently pry off. 2. If the flat tire is on the rear of the vehicle, put the jack handle extension on the jack handle. 5-28