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Commonly known as the "Deuce-and-a-half", the M135 was a soft top 2 1/2 ton, 6x6 truck made by General Motors Corporation for the U.S. Army and Air Force. It came in a variety of configurations, including ambulance, dump truck, gasoline, water tanker and more.By far the most common variant was the cargo version which could carry a dozen soldiers or loads of supplies. A double-wheeled version designated M211, and a tractor trailer model M221 were also widely produced. All were powered by the six-cylinder GMC 270 gas engine. Most came equipped with an early automatic transmission, the 5- or 6-speed Hydramatic. Additional performance features include air assisted power brakes, a 24-volt electrical system and sealed, waterproof ignition. The suspension featured front axles with auto engage. The top speed for the M135 was 58 mph. The weight of the M135 truck is between 12,330 and 12,740 pounds depending on the additional features, which sometimes included a Power Take Off (PTO) driveshaft system. This powered a winch that was located on the front or rear of the truck. The M135 was developed from the CCKW model used in WWII. Created in 1952, this technical manual reveals a great deal about the M135's design and capabilities. Intended as a manual for those charged with maintenance, it details every major component of the truck. Originally labeled restricted, this manual was declassified long ago and is here reprinted in book form. Care has been taken to preserve the integrity of the text.
