1999 Chevrolet Tahoe Owner's Manual - Page 263

yellowblue On four-door utility models, the spare tire may be stored under the vehicle in an underbody carrier. Follow these instructions to lower the spare tire: 1. One side of the ratchet has an UP marking. The other side has a DOWN marking. Assemble the ratchet to the hook near the end of the jack handle (as illustrated) with the DOWN marking facing you. Insert the other end through the hole in the rear bumper and into the hoist shaft. 2. Turn the ratchet to lower the spare tire to the ground. Continue to turn the ratchet until the spare tire can be pulled out from under the vehicle. 3. When the tire has been lowered, tilt the retainer at the end of the cable so it can be pulled up through the wheel opening. 4. Put the spare tire near the flat tire. 4-Door Utility Models A. Hoist Assembly B. Hoist Shaft C. Ratchet D. Jack Handle E. Retainer F. Valve Stem, Pointed Down G. Spare Tire 5-21