The M39 (G744) series was designed as a 5-ton (4536  kg), three-axle all-wheel-drive off-road truck to replace World War II-era trucks such as 4- and 6-ton 6x6s built by Brockway, Diamond T, Mack, and White.
Rushed into production by International Harvester in 1951, soon Kaiser (renamed Kaiser-Jeep in 1963) also became a major manufacturer, with Diamond T and Mack building smaller numbers.
The M39 series evolved into the M809 (G908) series in 1969, which followed, but did not replace, it.
The M809 Series was then improved into the M939 series.
The M39 (G744) series was designed as a 5-ton (4536  kg), three-axle all-wheel-drive off-road truck to replace World War II-era trucks such as 4- and 6-ton 6x6s built by Brockway, Diamond T, Mack, and White. Rushed into production by International Harvester in 1951, soon Kaiser (renamed Kaiser-Jeep in 1963) also became a major manufacturer, with Diamond T and Mack building smaller numbers. The M39 series evolved into the M809 (G908) series in 1969, which followed, but did not replace, it. The M809 Series was then improved into the M939 series.
M54 5-ton 6x6 truck