Then in 1967 the Cdn contract started and ended in 1971. My 1953 M38A1 (Serial Number MD55511) was a frame-off refurbish by my father and me to its original military configuration as delivered to the US ARMY in August 1953. Military Jeeps: M38A1 The M38A1 (MD) was built from 1952 until 1957 for the U.S. military forces and from 1958 until 1971 As far as I can tell the beginning 1960 serial number picks up where the 1955 serial numbers left off - the same with the Cdn models. How can I … However, in 1960 production was started again for the USMC and batches were made for them up until 1964. Ours has all the attributes of a later model M38A1. All the identification plates that were on the tub at one time are all gone and missing. M38A1 Serial number Database Please note that this is a work in progress and the information provided has been collected by Wes Knettle from people who volunteered their vehicle information. model number, contract number, and year manufactured. As the chassis number at the start of the thread is about 450 later, would this mean that ours is not a 1957 one? The engine has a Serial Number on it and it is MD53141. Another plate including name, patent information, and serial number is located behind the passengeR seat on the front of the rear fender well. Our Ex-NEKAF M38A1, chassis number MD14722, engine number MD113582, was apparently manufactured in 1957. This information was last updated in 2004. As far as Willys is concerned, 1955 was the last year for the M38A1 production.