GMC 1995 Suburban Owner's Manual page 274

If
the flat tire is on the rear of the vehicle. put the jack handle extension on
the jack handle.
Position the jack under the vehicle.
I
A
CAUTION:
Getting
under
a
vehicle when it
is jacked
up
is
dangerous.
If
the
vehicle slips
off
the jack, you could
be
badly injured
or
killed.
Never get
under
a
vehicle when
it is
supported
only
by
a jack.
NOTICE:
Raising your vehicle with the jack improperly positioned will
damage the vehicle or may allow the vehicle to fall off the jack.
Be sure to fit the jack lift head into the proper location before
raising your vehicle.
Front Position Rear Position
With UP on the ratchet facing you, raise the vehicle by rotating the ratchet
and wheel wrench clockwise. Raise the vehicle far enough off the ground so
there is enough room for the spare tire to fit.
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