GMC 1996 Sierra Owner's Manual page 239

Follow these instructions to lower the spare tire:
1 .
2.
3.
A. Hoist Assembly
B. Ratchet
C . Jack Handle
D. Hoist Shaft
E. Valve Stem,
Pointed Down
E Spare Tire
Ci.
Retainer
H. Hoist Cable
4.
One side of the ratchet has an IJP marking. The
other side has a DOWN marking. Assenlble the
ratchet
t o
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.
Turn the ratchet to lower the spare tire to the ground.
Continue to turn the ratchet until the spare tire can be
plrlled out from under the vehicle.
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.
Put the spare tire near the flat tire.