An even smaller number of ton jeeps with a slightly stretched wheelbase were built as the Willys MLW(-1) through MLW-4 "Jungle Jeep". LW stood for Long(er) Wheelbase, to accommodate significantly larger wheels and 7.50-20 tires with a tractor-like profile, with the objective to serve in the jungles of the Pacific theater, after a September 1943 request from the South West Pacific for a truck with payload and mobility over mud and swamps of jungle terrain, superior to that of the regular jeep.