KC on the vin is 1/2 ton, KD is 3/4 ton for 1939 JC is 1/2 ton JD is 3/4 ton
Rick, do you know if that convention holds true for the '41's also? Reason I ask is that I've acquired a 41 and a 50 3/4 ton (3600 model) from the family and am waiting delivery of both trucks and the paperwork. I don't know what my '41 is.
Thanks,
Bruce