The 38 is the same truck, before and after. I traded a gun cabinet for it back in '92 and drove it out of the woods. I narrowed a '47 tonner box and mated two running boards to make the long version I needed. First year of the tonner, last year of mechanical brakes. Factory 4:11 gears with those 34" tires, do the math. It flew (on the flats) daily driver for 10 years. Paid less than 700.00 a piece for these trucks. The '59 is the one I just put the cummins in.....Most folks want the 1/2 ton..........Thanks for the nice comments GB