The M151 is the successor to the Korean War M38 and M38A1 jeep Light Utility Vehicles. Commonly referred to as a "jeep" or "quarter-ton", it was produced from 1959 through 1982 and served in the Vietnam War. M151 were replaced in the most utility roles by the AM General HMMWV series.
M151A2 is an improvement in the M151 series. The A2 fielded a significantly revised rear suspension that greatly improved safety in fast cornering. The M151 now had Semi-trailing arm suspensioncomparable to what most late eighties premium German cars had. Many smaller upgrades including improved turn signals. The A2 can be identified by the large combination turn signal/blackout lights on the front fenders, which also had been modified to mount the larger lights, as opposed to earlier A1's that had flat front fenders.