GMC 2002 Savana - Manual (Page 266)

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5. Put the flat end of the extension on an angle through
the hole in the rear door frame, above the bumper.
6. Raise the tire fully against the underside of the
vehicle. Continue turning the ratchet/wheel wrench
until the tire is secure and the cable is tight. The
spare tire hoist cannot be overtightened.
7. Make sure the tire is stored securely. Push, pull, and
then try to rotate or turn the tire. If the tire moves,
use the ratchet/wheel wrench to tighten the cable.
You will hear two “clicks” when the tire is up all
the way.
Return the jacking equipment to the proper location.
Secure the items and replace the jack cover.