I believe the hood is the same, (my 58 2-ton and 59 1/2 ton Suburban are the same width and length anyway). If there is a difference, I would like to know what it is.
Fenders are wider and so is the grill, not sure about inner fenders, have not looked at those closely and not sure why they would be different (main thing on fenders is they are wider for the wider axle)