I am not sure your number is correct, as I didn't think it should start with a letter. In any event, I used the VIN buster in the tech tips on this forum and it gave me 1940, 1 1/2 ton, 133 inches wheelbase, unknown manufacturing plant. Try it yourself. I believe the manufacturing plant is a number and is the first item in the VIN. If I remove the "W" at the front it gives me the same info, and adds Flint, MI as the plant.
Kent

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