Shopping for a 3/4 ton, What fit issues should I expect?

Don't get hung up on 1 ton SRW trucks. They're pretty much impossible to find unless you are very lucky, or order one new. I don't know why manufacturers even bother making them. They should just have the half ton, 3/4 ton, and 1 ton dually. The difference between a 3/4 ton and a 1 ton SRW only involves a few parts, and most 3/4 tons are already rated at what a 1 ton SRW was rated for just a few years ago.