page_title: GMC CCKW 2½-ton 6x6 truck
section_title: Versions
hierarchical_section_title: GMC CCKW 2½-ton 6x6 truck / Versions
caption_attribution_description: English: Tanker, GMC, 750 Gallons, 2 1/2 Tons, 6x6.
context_page_description: The GMC CCKW, also known as "Jimmy", or the G-508 by its Ordnance Supply Catalog nr, was a highly successful series of off-road capable, 2​¹⁄₂-ton, 6x6 trucks, built in large numbers to a standardized design for the U.S. Army, that saw heavy service, predominantly as cargo trucks, in both World War II and the Korean War. The original "Deuce and a Half", it formed the backbone of the famed Red Ball Express that kept Allied armies supplied as they pushed eastward after the Normandy invasion.
  The CCKW came in many variants, including open or closed cab, long wheelbase CCKW-353 and short CCKW-352, and over a score of specialized models, but the bulk were standard, general purpose, cargo models. A large minority were built with a front mounted winch, and one in four of the cabs had a machine-gun mounting ring above the co-driver's position.
  Of the almost 2.4 million trucks that the U.S. Army bought between 1939 and December 1945, across all payload weight classes, some 812,000, or just over one third, were ​2 ¹⁄₂-ton trucks.
context_section_description: Initially, all versions used a modified commercial closed cab design having a metal roof and doors. By 1944 an open cab version, with a canvas roof and doors, was used. This was easier to build, and the roof could be removed to lower the shipping height. 1 in 4 of cabs had a machine gun mounting ring above the co-driver's position.
  The CCKW provided a platform for the widest range of bodies on any U.S. military vehicle, with the 12 ft (3.7 m) cargo version being the most common. As steel was more heavily rationed during the course of the war, the steel cargo bed was replaced by a wooden one. Wooden beds proved unsatisfactory and a 'composite' bed with steel sides, framing, and wooden bottom slats was developed. However, the composite bed was still unsatisfactory and the bed design returned to all steel. Standard cargo models had beds with fixed sides and a drop tailgate, as well as folding troop seats.
  A standard rectangular van configuration was used in communications, medical, workshop, and many other specialty roles. Special built vans were also used.
caption: Gasoline tanker (750 US gal (2,800 l))
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