My 2500 RAM quad cab, short bed, diesel was great when I had an 11,250 pound fiver. When I moved up to my current 13,500# Titanium I ran across CAT scales and found that I made all limits but didn't "feel" real comfortable.
I moved up to a (used) Chevy 3500 crew cab, long bed, diesel and will never go back.
The difference in the ride quality between the short and long bed wheelbases is amazing if you have never experienced it.
The drawback is that I now have the longest consumer pickup GM makes and some things like parking and u-turns can be a problem. (it has it's own ZIP Code.)
