Studebaker US6

Produciton year 1945

The Studebaker US6 (G630) was a series of 2½-ton 6x6 and 5-ton 6x4 trucks manufactured by the Studebaker Corporation and REO Motor Car Company during World War II. The basic cargo version was designed to transport a 5,000 lb (2,300 kg) cargo load over all types of terrain in all kinds of weather. Most of these were exported to the Soviet Union under Lend-Lease by the USA during World War II.

In 1939-1940 the US Army Ordnance Corps was developing  2 1⁄2-ton (2,238 kg) tactical 6×6 trucks that could operate off-road in all weather. Studebaker, Yellow Coach (a GM company) and International Harvester all submitted designs that were accepted and went into production in 1941.

A total of 219,882  2 1⁄2-ton (2,268 kg) 6x6 trucks and similar 5-ton (4,536 kg) 6x4 versions in thirteen variations were built. Studebaker was the primary manufacturer, which built 197,678 of them at their South Bend IN plant, while REO produced 22,204 more at their Chicago IL plant from 1944 under a sub-contract.

REO trucks are identical to Studebakers, but REO only built cargo-model trucks with the long wheelbase and without the front-mounted winch, more specifically referred to as the US6 U9. All production by both manufacturers ended in 1945.

That vehicle available on tours

Number of passengers in that vehicle

(17)

Interesting Facts

The Russian Army particularly enjoyed their Studebaker stocks as they found that the Hercules engine could run on just about any type of gasoline at hand. Standard gross weight limits were regularly exceeded out of sheer necessity and Soviet personnel grew so fond of the American product that they referred to them simply as “Studers”. Eventually, various improvised configurations (never envisioned by its American designers) were implemented.

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Most of the Studebaker trucks were built with a closed hardtop cab based on the civilian Studebaker M-series cab design – as the harsh weather in the Soviet Union essentially required it. The US6 and the GMC CCKW series trucks shared a similar external appearance to one another though closer examination revealed the fuel tank in the US6 set to the driver’s side while the CCKW fit this along the passenger side. The US6 cab also featured “swing-out” forward windscreens with roof-mounted windshield wipers.

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  • Consumption level 45%
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  • Activity during the war 33%
  • Availability on the market 3%

Technical Specifications

Capacities
Cooling System
21 qts
Engine Crankcase
6 qts
Differential (each)
2 1/2 qt
Rear Axle Differential
7lbs
Steering Gear Housing
1 1/2lbs
Fuel Tank
40 gal
Transmission
9 lbs
Transfer
7 lbs
Speed
45 mph (72 km/h)
Engine
Type
L-Head
Model
Hercules JXD
Displacement(inch3)
320
Bore(inches)
4
Stroke(inches)
4-1/4
Cylinders
6
Governed Speed(r.p.m.)
2750
Dimensions (US6 6x6)
Height - top of cab
87”
Height Over-all
106”
Width Over-all
88”
Lenght Over-all
250”
Wheelbase
162”
Road Clearance
10"
Angle of Approach
55°
Turning Radius - left
34'8"
Turning Radius - right
35 1/2"
Weight (empty)
9,875 lb (4,479 kg)