GMC 2005 Safari Owner's Manual page 289

11. Put the nuts on by hand. Make sure the
cone-shaped end is toward the wheel. Tighten each
nut by hand until the wheel is held against the
hub. If a nut cannot be turned by hand, use
the extension and see your dealer as soon as
possible.
12. Lower the vehicle by turning the ratchet
counterclockwise. Lower the jack completely.
CAUTION:
{
Incorrect wheel nuts or improperly tightened
wheel nuts can cause the wheel to come 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 GM original equipment wheel nuts.
Stop somewhere as soon as you can and have
the nuts tightened with a torque wrench to the
proper torque specification. See Capacities
and Specifications on page 5-101 for wheel nut
torque specification.
Notice: Improperly tightened wheel nuts can lead
to brake pulsation and rotor damage. To avoid
expensive brake repairs, evenly tighten the wheel
nuts in the proper sequence and to the proper
torque specification. See Capacities and
Specifications on page 5-101 for the wheel nut
torque specification.
5-81