GMC 1995 Safari Owner's Manual page 192

The following steps will tell you how to use the jack and change a tire.
Jack Storage
The jacking equipment you'll need is stored by your vehicle's rear doors,
along the passenger side wall.
Remove your jack
cover by by turning
the plastic wing nut
counterclockwise.
Lift up on the latch
and pull the jack cover
off.
I -
Remove the wheel
blocks and jack by
turning the wing nut
counterclockwise.
Remove the wing nut
and washer then pull
the wheel blocks and
jack off the bolt.
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