LITERATURE REVIEW Mechanical type screw jacks were very general for jeeps and trucks of World War II era. For instance, the World War II jeeps (Willys MB and Ford GPW) were made the "Jack, Automobile, Screw type, Capacity 1 1/2 ton", armaments part number 41-J-66. These jacks, and related jacks for trucks, were functioned by using the lug twist as a lever for the jack's ratchet act top of the jack. The 41-J-66 jack was accepted in the jeep's tool section. Screw type jack's persistent in use for little