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A pintle and lunette is a very heavy duty hitching combination used in construction and the military. In the case of towing hitches designed to carry other vehicles, there are more specialized types, described immediately below.
Trailer hitch receiver tubes may be bolted, welded, or integral to the vehicle chassis, and come in various sizes depending on the load they are designed to carry and the country of operation. The US standards are: Class I and II: 1 + 1 ⁄ 4 in (31.8 mm) light or medium duty [4] receiver tube; Class III and IV: 2 in (50.8 mm) heavy duty [4 ...
Without a fifth wheel, the modern distribution system would look quite different as drop-and-hook would not be easy. The semi-trailer increased the capacity of trucks, but it was the fifth wheel that brought the flexibility for drivers to keep moving while receivers unloaded the loads they just delivered.
They had a pintle hitch at the rear for towing up to 40,000 lb (18,000 kg). Another pintle at the front could be used to emplace the piece. A mid-mounted 25,000 lb (11,000 kg) winch had a centered cable drum and a capstan on the right side. Pulleys and rollers routed the cable under the body and out the rear frame cross-member.
Corbitt, a small company which had sold the US Army trucks since 1917, was working on designs for heavy-duty conventional 6x6s trucks. In 1940 their designs for a 6-ton truck and a 10-ton wrecker chassis were standardized, with Corbitt to build 6-ton cargo trucks, while the 10-ton wreckers were contracted to Kenworth Motor Truck Corp. and Ward ...
GM CUCVs were assembled mostly from existing heavy duty light commercial truck parts. The CUCVs came in four basic body styles: pickup, utility, ambulance body and chassis cab. [12] [13] The M1008 was the basic cargo truck, the M1010 was the ambulance, and the M1009 was a Chevrolet K5 Blazer uprated to 3 ⁄ 4-ton capacity.