WWII Willy's Jeep Building Brick Kit (143 pcs)100% compatible with leading building brick brands! The Willys MB and the Ford GPW, both formally called the U. S. Army Truck, 14ton, 44, Command Reconnaissance, commonly known as the Willys Jeep, Jeep, or jeep, and sometimes referred to by its Standard Army vehicle supply Number G 503, were highly successful American off road capable, light military utility vehicles. Well over 600,000 were built to a single standardized design, for the United States