Willys-Overland and its successors, Willys Motors and Kaiser Jeep continued to supply the U.S. military, as well as many allied nations with military jeeps through the late 1960s. In 1950, the first post-war military jeep, the M38 (or MC), was launched, based on the 1949 CJ3A. In 1953, it was quickly followed by the M38A1 (or MD), featuring an all-new "round-fendered" body in order to clear the also new, taller, Willys Hurricane engine. This jeep was later developed into the civilian launched in 1955. Similarly, its ambulance version, the M170 (or MDA), featuring a 20-inch wheelbase stretch, was later turned into the civilian .