Hy DLyne, I'm going to have to disagree with Red, Maple Leafs after 1939 have more in common with G.M.C.s than they do with Chevrolets. Only the badges say Chevrolet, after 1939 they were G.M.C. powered and had G.M.C.s motor wheels. There production started in the early 30s and finished in 1950, I have four of them a 37, a 43, a 46, and a 50. They are Canadian production, I believe a 1600 would be a 2 ton. What body style is your truck?