1998 Pontiac Firebird Owner's Manual - Page 244

4. Remove any rust or dirt from the wheel bolts, mounting surfaces and spare wheel. A CAUTION: 3. Raise the vehicle by rotating the wheel wrench to the right (clockwise). Raise the vehicle far enough off the ground so there is enough roomfor the spare tire to fit. Remove all the wheel nuts and take off the flat tire. Rust or dirt thewheel, or on the parts on to which it is fastened, can make the wheel nuts become loose after a time. The wheel could come off and cause an accident. Whenyou change a wheel, remove anyrust or dirt from places the where thewheel attaches to the vehicle. In an emergency, you can use a cloth or a paper towel to dothis; but be sure to use a scraper or wire brush later, if you need to, to get all the rustor dirt off. 5-35