Posibly a nv4500 if I can find one cheap would like to go with a 400 auto but the add on overdrives are way too expensive!This is going to be a budget built truck. First I have to find a solid truck to build, up here in the RUST BELT stove bolts are hard to find. Most trucks over 1/2 ton were used up and crushed years ago. That is why I left myself open to many generations of truck. That is also why I was thinking a 1/2 ton cab on a newer (73-87) 1 ton chassis the 73-87 style 1 tons are more plenty full around here (although diminishing), but I just like the older style. You guys in the south don't know how lucky you are!