The M416, the last of the military 1/4 ton Jeep trailer

Jeep trailer

The Jeep trailer was a small 1/4-ton cargo trailer designed to be towed by U.S. Army Jeeps.-History:When the Army developed the Willys MB it needed a cargo trailer that would track behind the vehicle. The first trailer was called the "Trailer, 1/4-ton, 2W, cargo, Amphibian"...

s, can be distinguished from earlier 1/4 ton trailers by its squared fenders. There were two later versions, the M416A1 and the M416B1. The M416B1 used the smaller 6.00 X 16 tires on M422 wheels because it was designed to be towed by the USMC

United States Marine Corps

The United States Marine Corps is a branch of the United States Armed Forces responsible for providing power projection from the sea, using the mobility of the United States Navy to deliver combined-arms task forces rapidly. It is one of seven uniformed services of the United States...

 M422 'Mighty Mite'

M422 Mighty Mite

The M422 'Mighty Mite was a light weight ¼-ton 4x4 tactical truck, suitable for airlifting and manhandling. From 1959-1962, the Mighty Mite was built by American Motors for the United States Marine Corps.-History:...

 instead of the M151 MUTT that towed the M416's and M416A1's.http://www.steelsoldiers.com/index.php?name=PNphpBB2&file=viewtopic&p=36474

In addition to the smaller tires, the M416B1 also had lifting rings for airborne operations and jerry can mounts on each side. Approximately 2000 M416B1 trailers were built.