1. Not really. I wouldn't say all 3/4 ton owners beef the trucks rear axle for several reasons.
One can be a F250 with the camper/heavy service package has the same suspension as a F350 SRW.
Another is at 2100 lbs dry weight your looking at 3100 + lbs which is well within the range of 3/4 ton trucks 6000-6600 RAWR numbers.
Not all TC owners load their truck/TC rigs with lots of "just in case junk":)
2. Trucks don't carry weight determined by a GVWR number but by the trucks axle/tire load ratings. CODOT can help you with the staying under your trucks weights legally/safely.
The F250 camper pack/heavy service package would be a good choice.
Also the new 2500 GM twins have a 11450 gvwr and a 6600 rawr for mid 3400-3500 lb range depending on cab selections.
The most in the bed payload for carrying a TC will be the truck with the lightest rear axle unloaded weight.
A F350/3500 Ram or GM or Ford is another option. Just like the 3/4 ton pay attention to RAWR numbers/cab selections.
Be careful here as some SRW trucks with those high GVWR based payload sticker placards 4000+ lbs will overload the trucks 7000-7300 RAWR.
