With current wolf creek camper loaded, I am still over 2.5K below max load. (and this 2.5K is all on the back as the wolf creek only adds 600 lbs to front axle) Yes I bought this truck with some growing room :).
Oh, and before I bought this 3500, I checked ram body builders for camper numbers. It says remaining cargo = 5575 lbs. This is the Ram 3500, 8' bed, dually, 1400 GVWR, Cummins, Aisan trans, 410 gears, 4wd, crew cab. I bought this to carry slide in campers, as well as move my 5th wheel when needed.
Today I find that "camper sheet" in the glove box. Why in the hell does it say "this truck is not recommended to carry a camper"?. Guess what, its getting a camper added as soon as the swing out hinges show up.