I thought the trucks used the same shell as the passenger cars other than maybe being painted rather than stainless. It looks non-ford to me. First impression was Dodge. 31Dodger will know. Could be chevy as suggested.
I agree that it is a 1930 or 1931 Model AA Ford truck shell. The AA designation is for the big trucks, not the pickups. The shell is slightly deeper (front to back) to allow for the thicker radiator used in the AA trucks and you need to allow for this if running a standard Model A radiator. In 1930 the pickup truck used the same shell as the passenger car but standard steel painted black with a blue emblem. In 1931 the pickup truck used the same shell as the 1930 (not 1931) passenger car but standard steel painted black with a stainless emblem. Charlie Stephens
Charlie: Thanks for the clarity. I bet the big truck "big" radiator wound up in a few A's and other early ford cars!