1999 Chevrolet Express Van Owner's Manual - Page 222

yellowblue Removing the Spare Tire and Tools Unless your vehicle has a flat rear tire, do not remove or restore a tire from/to a storage position under the vehicle while the vehicle is supported by a jack. Always tighten the tire fully against the underside of the vehicle when restoring. If you have a vehicle which was completed from a cab and chassis, refer to the information from the body supplier/installer. The spare tire is a full-size tire, like the other tires on your vehicle. For cargo vans, and all passenger vans except those with the 15-passenger seating arrangement, the jack is secured in the rear passenger side corner of the vehicle. Your spare tire is stored underneath the rear of your vehicle. You will use the ratchet and extension to lower the spare tire. A flat rear tire reduces clearance to remove the spare tire. If there is less than 12 inches (30.48 cm) between the ground and the rear bumper or any trailer hitch, jack up the vehicle until the flat tire is off the ground. (See "Removing the Flat Tire" and "Installing the Spare Tire," Steps 4 through 8, in this section.) Remove the retaining wing bolt and lift it off the mounting bracket. Set the jack and jacking equipment near the flat tire. 5-22