AM General M939

In 1975, the AM General company developed a replacement of his own 5-ton series. The first order they received only in April 1981, and production of M939 (6×6) range began in 1982. This range was very similar to M809 series, but it had a new automatic 5-speed transmission Allison, 2-speed transfer gear-box, a pneumatic brake drive and a new more reliable axles Rockwell.

For the first time on these machines appeared a diagnostic system and a cab with enhanced sound insulation, and an old front mask of standardized trucks replaced by a new front mask with integrated headlights. The cabin was able to accommodate three crew members. Trucks had a gross weight 14,2-21,0 ton, and speed was 84 km/h. Trucks could climb a slope up to 60%. Since 1985, released an updated range A1 for use in snow and desert regions. It was equipped with a closed all-metal or a soft-top cab, central tire inflation system and ABS. Until 1992, over 21 thousand copies of this trucks were produced.

The range consisted of:

• M939, M940, M941, M942, M943 – basic chassis with different length of wheelbase with a winch or without it. Also was produced in A1 variant with single rear wheels and A2 with a central tire inflation system.
• M944 – basic chassis with extra-long wheelbase. M944A1 and M944A2 models were produced also.
• M945 – chassis for special equipment. Also, produced M945A1 version – carrier of section of a bridge and M945A2 – generator truck.
• M923 – flatbed truck on the M939 chassis. Also, was produced in A1 variant with single rear wheels and A2 with a central tire inflation system.
• M925 – version of M923 flatbed truck with a winch. Also, was produced in A1 variant with single rear wheels and A2 with a central tire inflation system.
• M926 – flatbed truck. Also, M926A1 version was produced.
• M927 – flatbed truck with extra-long wheelbase and with a winch. Also, was produced in A1 variant with single rear wheels and A2 with a central tire inflation system.
• M928 – version of M927 without a winch. Also, was produced in A1 variant with single rear wheels and A2 with a central tire inflation system.
• M929 – dump truck. Also, was produced in A1 variant with single rear wheels and A2 with a central tire inflation system.
• M930 – version of M929 with a winch. Also, was produced in A1 variant with single rear wheels and A2 with a central tire inflation system.
• M931 – tractor truck. Also, was produced in A1 variant with single rear wheels and A2 with a central tire inflation system.
• M932 – version of M931 with a winch.
• M933 and M936 – recovery vehicles.
• M934 – van truck with an extra-long base. Also, was produced in A1 variant with single rear wheels and A2 with a central tire inflation system.
• M935 – version of M934 model without a winch and with a lift of back door. Also, was produced in A1 variant with single rear wheels and A2 with a central tire inflation system.

Later, FMTV range completely replaced M939.