1996 GMC Savana Van Owner's Manual - Page 221

Storing a Flat or Spare Tireand Tools Storing a jack, a tire or other equipment in the passenger compartmentof the vehicle could cause injury. In a sudden stop or collision, loose equipment could strike someone. Store all these in the proper place. I . Put the tire on the ground at the rear of the vehicle, with the valve stem pointed down. 2. Pull the retaining bar through the center of the wheel, making sure it is properly attached. 5-33