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GMC CCKW-353, 6 x 6, 6 V (side view, right side)

 
 

Side view, right side

Picture courtesy of Henrik Clausen, Copenhagen

 

Danish Army Specific: The GMC CCKW-353 was delivered as a part of the American aid program (MDAP) between 1951 - 1955. Typical role for the GMC was transportation of cargo and personnel, and workshop- or spare parts-van. Also used as a fuel truck.
Delivered with short wheel base (
GMC CCKW-352 (85 kb)) as artillery-tractor for a 105 mm howitzer.
Historical
: In 1939 the US Quartermaster Corps invited a number of American truck manufacturers to submit a bid for a 2 ton 6 x 6 cargo vehicle. Of the submissions the GMC ACKWX-353 was selected for production and during 1940 2.466 trucks were made. The ACKWX-353 evolved from the commercial ACX-353 truck, with military requirements like brush-guards and towing eyes added.
In February 1941, supplies of the Timken Wisconsin split-type rear axles was supplemented by the stronger GMC banjo-type axles, which meant re-designing most of the rear drive-line. Trucks continued to be produced with both types of rear axles throughout the rest of the production period, in more-or-less equal quantities.
The vacuum-boosted brakes were replaced by the Bendix "Hydro Vac" in early 1942. In May same year the electrical system was upgraded from 25-amp positive ground to 40-amp negative ground.
From April 1943 onwards all cargo trucks had an all wood cargo body instead of the previous used steel type.
More than half a million "deuce-and-a-half" were produced between 1941 and August 1945 by the Yellow Truck & Coach Mfg Co. (from September 1943 General Motors Truck & Coach Division) and the St. Louis plant of Chevrolet Division of General Motors Corp (1942 onwards).
Majority were cargo trucks, but numerous other body-types like compressor truck, petrol tanker and water tanker were made. Also supplied from the factory as chassis-cab for use by specialist body builders. They were supplied with civilian style closed cap until August 1942 - then with the standardised open military cab.
The CCKW-353 in the US Army was replaced by the M35 starting around 1950/51.
Length: 6.85 m (270 inches).
Width: 2.23 m (88 inches).
Height: 2.79 m (110 inches).
Weight: 9.202 kg (20.450 lb.).
Engine
: GMC 270 6-cylinder, 4.425 cm3 (270 cubic inches) displacement, liquid cooled, carburettor.
Horsepower: 94 at 3.000 rpm.
Transmission: 5-speed, Warner.
Transfer case: 2 speed, GM (banjo) or Timken (split).
Electrical system: 6 volt, negative ground.
Brakes: Hydraulic, vacuum assisted (GMC-Bendix).
Tyres: 7.50 - 20.
Fording depth:
without preparation: 0.76 m (30 inches).
with deep water fording kit: N/A.
Fuel type: Petrol.
Fuel capacity: 182 liter (40 gallons).
Range: 480 km (300 miles).
Crew: 2.
Additional: Vehicle shown mounted with ST5 non-collapsible body. The ST6 body were used in different configurations like Artillery Repair M9A1, Automotive Repair M8A1, Electrical Repair M18A1, Instrument Repair M10A1 (Load A), Instrument Bench M23, Machine Shop M16A2 (Load A), Machine Shop M16A1 (Loads B, B1, B2), Signal Corps General Repair M31, Signal Corps Repair M30, Small Arms Repair M7A2 and Tire Repair M32.
The ST5 version were classified as Limited Standard by Ordnance Committee action in November 1942 and February 1943. They were Artillery Repair M9, Automotive Repair M8, (Loads A and B), Electrical Repair M18, Instrument Repair M10 (Loads A and B); Machine Shop Repair M16 (Loads A, B, C, D and F), Small Arms Repair M7, Spare Parts M14 (Loads A and B), Tool and Bench M13 and Welding Repair M12.
All bodies were all metal, had 6 windows in each side, one at the front and two at the rear. Side windows could all be opened and all were protected by heavy brush guard and screen wire. All windows were provided with black-out curtains. A heating and ventilation were provided so the truck could be used under all climatic conditions.
Standard equipment included a ladder for access to the rear of the unit and an electric light-system having a black-out arrangement which automatically turned of the light when the door was opened.
Some vehicles were equipped with Gar Wood (type 2-U512) or Heil (type JJ-104-B, 125G or 125G1) 5-ton mechanical winch.
The designation CCKW translates to "C" = designed in 1941, "C" = conventional cab, "K" = all-wheel-drive and "W" = dual powered rear axles.
Variants:
GMC CCKW-353 GS (19 kb)
GMC CCKW-353 Mortar fire control (105 kb)
GMC CCKW-353 compressor (96 kb)
GMC CCKW-353 HF-radio (131 kb)
GMC CCKW-353 maintenance (34 kb)


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