Im looking for a newer truck for my DD and tow rig. Im looking at either a 90's chevy extended cab short bed or a 94-98 dodge ram extended cab short bed. I would like to get a diesel but not sure if i wanna spend the extra coin. The heaviest thing it would tow is my 84 suburban-if i turn it into a trail rig on a trailer What are the diffrences in the 1/2 and 3/4 tons for them years of trucks? is it just axles and brakes? or are the frames diffrent?