Pontiac 1999 Firebird - Manual (Page 243)

yellow blue
5-33
9. Tighten the wheel nuts
firmly in a criss - cross
sequence as shown.
CAUTION:
Incorrect wheel nuts or improperly tightened
wheel nuts can cause the wheel to become loose
and even come off. This could lead to an accident.
Be sure to use the correct wheel nuts. If you have
to replace them, be sure to get new original
equipment wheel nuts.
Stop somewhere as soon as you can and have
the nuts tightened with a torque wrench to
100 lb
- ft (140 N·m).