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M-38 Truck 1/4 Ton 4x4

The M38 Jeep was the first post-WW II jeep, based on the civilian model CJ-3A, but upgraded for military use. It was known by Willys as the model MC. It featured flat fenders, a one-piece windshield, bottom-mounted wipers, a fuel filler on the left side near the driver's seat, protruding headlights, and an air vent at the bottom center of the windshield frame. The pioneer tools (axe and shovel) are located on the passenger side. The 80-inch wheelbase M38 weighed 2,750 pounds. Its nomenclature is Truck 1/4 Ton 4x4, M-38 (G-740).

When compared to the World War II Willys MB / Ford GPW, the M38 is a little larger, with better seating for the driver and passenger, and uses larger tires (7:00x16). It shares a 24 volt waterproofed electrical system with other post-war M-series vehicles, requiring a second battery to boost the voltage. The L-head, 4 cyl. 60 hp. engine of the MB was improved with a gear drive camshaft and was mated to a T90 transmission and 5:38 axle gears.

Willys produced about 45,500 of the M-38 jeeps from September 1950 through July 1952.

More information and photos are available on this Olive-Drab.com page about M-38 Military Jeeps.

M-38 jeep with top & side curtains and fording gear, Detroit Arsenal, June 1950
M-38 jeep with top & side curtains and fording gear, Detroit Arsenal, June 1950.

Today in WW II: 20 Oct 1941 In reprisals for losses to Yugoslavian partisians, Germans troops kill thousands of civilians in Kragujevac and Kraljevo [20-21 Oct].  More 
20 Oct 1944 Philippines invaded by Allies at Leyte, joined by Filipino guerillas.
20 Oct 1944 Gen. Douglas MacArthur Returns to Leyte, Philippine Islands.
20 Oct 1944 Belgrade, Yugoslavia liberated by Russian Red Army aided by Yugoslav Partisans.
Visit the Olive-Drab.com World War II Timeline for day-by-day events 1939-1945! See also WW2 Books.

M-38 Truck 1/4 Ton 4x4 (G-740)

Manuals for the M-38 Truck 1/4 Ton 4x4 include:

TM 9-804Operation and Organizational Maintenance (1950)
TM 9-8012Operation and Organizational Maintenance (1956). Supersedes TM 9-804.
LO 9-8012Lubrication Order
TM 9-1804AMaintenance of Engine and Clutch (1951)
TM 9-1804BPower Train, Body and Frame (1951)
ORD 9 SNL G-740Parts List (1955)

Date in parentheses may not be the only publication date for the manual.

Find additional photos and hi-res versions of the M-38 military jeep at the Olive-Drab Military Mashup:

Joint Color Guard leads the parade down Rodman Avenue during Rock Island Arsenal Armed Forces Day, 24 May 2011.
M38 jeep and soldiers use the exit ramp of a BARC, landing on a beach during training, circa 1960.
Maj. General Patricia McQuistion, Commanding General, Army Sustainment Command, checks out the vintage M38 jeep she will ride in during the Rock Island Arsenal  150th anniversary celebration parade as owners Richard and Carol Morrow look on, Rock Island Arsenal, IL, 27 June 2012.
M38 Truck, 1/4-ton, 4x4 (jeep), manufactured by Willys in 1951. Courtesty eBay seller dnelson1946.
M38 jeep from United States Army Southern European Task Force (SETAF), circa 1950s.
M38 Truck 1/4-ton 4x4 (jeep).

M-38 Military Jeep Photo Gallery

Former US Air Force M-38 serial #4799, photographed in 2006. Turn signals and other details are not original configuration
Former US Air Force M-38 serial #4799, photographed in 2006. Turn signals and other details are not original configuration.
Photo: Courtesy of eBay seller armydave2.

Former US Air Force M-38 serial #4799, photographed in 2006. Turn signals and other details are not original configuration
Former US Air Force M-38 serial #4799, photographed in 2006. Turn signals and other details are not original configuration.
Photo: Courtesy of eBay seller armydave2

M-38 with military hard top, gas fired heater and deep water fording snorkle. Photo: Courtesy of Dennis P. Nolan
M-38 with military hard top, gas fired heater and deep water fording snorkle.
Photo: Courtesy of Dennis P. Nolan.

M-38 Truck 1/4 Ton 4x4 (G-740).  Photo: Courtesy of Steve Johnston
M-38 Truck 1/4 Ton 4x4 (G-740). Photo: Courtesy of Steve Johnston.

M-38 on left with 1943 Willys MB on right.  Photo: US Army National Infantry Museum
M-38 on left with 1943 Willys MB on right. Photo: US Army National Infantry Museum.

M-38 Truck 1/4 Ton 4x4 (G-740). Photo: Courtesy of Steve Johnston
M-38 Truck 1/4 Ton 4x4 (G-740). Photo: Courtesy of Steve Johnston.

M-38 Truck 1/4 Ton 4x4 (G-740). Photo: Courtesy of Reggie Caruso
M-38 Truck 1/4 Ton 4x4 (G-740). Photo: Courtesy of Reggie Caruso.

M-38 Truck 1/4 Ton 4x4 (G-740). Photo: Courtesy of Reggie Caruso
M-38 Truck 1/4 Ton 4x4 (G-740). Photo: Courtesy of Reggie Caruso.

M-38 Truck 1/4 Ton 4x4 (G-740). Photo: Courtesy of Reggie Caruso
M-38 Truck 1/4 Ton 4x4 (G-740). Photo: Courtesy of Reggie Caruso.

M-38 Truck 1/4 Ton 4x4 (G-740). Photo: Courtesy of Reggie Caruso
M-38 Truck 1/4 Ton 4x4 (G-740). Photo: Courtesy of Reggie Caruso.

Recommended Book about the M-38 Jeep

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