page_title: M35 series 2½-ton 6x6 cargo truck
section_title: Tank truck
hierarchical_section_title: M35 series 2½-ton 6x6 cargo truck / Variants / Tank truck
caption_attribution_description: English: A left side view of an Air Force 530B structural pumper firefighting vehicle based on a M45 "deuce-and-a-half" truck.
context_page_description: The M35 2½-ton cargo truck is a long-lived 2½-ton 6x6 cargo truck initially used by the United States Army and subsequently utilized by many nations around the world. Over time it evolved into a family of specialized vehicles. It inherited the nickname "Deuce and a Half" from an older 2½-ton truck, the World War II GMC CCKW.
  The M35 started as a 1949 REO Motor Car Company design for a 2½-ton 6x6 off-road truck. This original 6-wheel M34 version with a single wheel tandem was quickly superseded by the 10-wheel M35 design with a dual tandem. The basic M35 cargo truck is rated to carry 5,000 pounds off-road or 10,000 pounds on roads. Trucks in this weight class are considered medium duty by the military and the Department of Transportation.
context_section_description: The M49 fuel tanker and M50 water tanker variants were initially based on the M44 chassis.  The M49C series, however, were vehicles converted from C series drop-side cargo variants.  M49's have 1200-gallon tanks. Early models had triple compartments (200g front, 400g mid, baffled 600g rear), but most models have two 600-gallon baffled tanks. The M50 had a 1,000-U.S.-gallon (3,800 L; 830 imp gal) water tank, of which later variants had internal baffles to combat weight transfer during motion. In some areas the M35 is still used today as a wildland firefighting truck with a portable water supply and fully operational pump.
caption: A USAF air base structural fire fighting engine/pumper 530B based on M35
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