Chevrolet 1999 Astro Owner's Manual page 234

7. Put the flat end of the extension on an angle through
the hole in the rear door frame, above the bumper.
Be sure the flat end connects into the hoist shaft.
8. Turn the ratchet counterclockwise to lower the spare
tire to the ground. Keep turning the ratchet until the
spare tire can be pulled out from under the vehicle.
5-22
Pull the tire out from under the vehicle.
NOTICE:
To help avoid vehicle damage, do not drive the
vehicle before cable is restored.
9. When the tire has been
lowered, tilt the retainer
plate at the end of the
cable and pull it through
the wheel opening.
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