Chevrolet 1993 Astro Passenger Owner's Manual page 234

Storing the Tire and Jack
Storing the Tire
Put the tire on the ground at the rear of the vehicle, with the valve stem
pointed down.
Pull the retaining bar through the center of the wheel, making sure it is
properly attached. Attach the ratchet, with the UP side facing you, to the
extension.
Put the flat end of the extension on an angle through the hole in the rear
door frame, above the bumper. Turn the ratchet clockwise until the tire is
against the underside of the vehicle.
You will hear two "clicks" when the tire is up all the way. Try to move the
tire with your hands to make sure it is securely in place.
Storing the Jacking Equipment
K35r
Return the jack, ratchet, extension and wheel blocks to the proper location in
the rear storage area. Replace all bolts, retainers and wing nuts in the proper
location. Secure the jacking equipment in its proper location and replace the
jack storage cover.
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