Description

The MA was the prototype that won Willys the contract with the U.S. Government. Willys built approximately 1550 of them in 1941. From late 1941 until mid 1945, Willys built MBs and Ford built GPWs based on the Willys design.

The first 25,808 MBs produced by Willys used a "slat grill". This grill was welded together rather than the stamped grill most people are familiar with. Very few "slat grill" MBs remain in existence.

Drive Train

The MA, MB, and GPW used the "Go Devil" L-head 134 I4 engine, T-84 3 Speed manual transmission, Dana 18 two speed transfer case, Dana 25 front axle, and Dana 23-2 rear axle.

Production Information

MA

Year	Serial Number Range	Production
1941	78401 - 79900	1500
1941	85501 - 85550	50

MB

Year	Serial Number Range	Production
1941	100001 - 108598	8598
1942	108599 - 200022	91424
1943	200023 - 293232	93210
1944	293233 - 402334	109102
1945	402335 - 459851	57517

GPW

Year	Serial Number Range	Production
1942	-	?
1943	-	?
1944	-	?
1945	-	?

Serial numbers are located on the left front of the frame and on the back of the bumper. The engine number was located at the front of the engine block on the water pump boss.

Contributor

Thanks to Charlie Weaver for sending me the MA and MB serial numbers.

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ORC STAFF

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