Anton and Snow,
Welcome to TC mecca. You will, no doubt, receive many suggestions from folks who really know truck campers inside and out, all derived from their own personal journey. There are many things to consider. Not the least of these is your personal RV lifestyle. If you are going to stay on civilized roads plugged in to camp grounds, then go big. If you are moving in the direction of remote, down the two track style of travel, unconnected to anything but your Garmin, your solar/generator and the earth then keep that big truck and go much smaller on the TC. Hours ago we got off the Mojave Road. Here's my sled for the adventure, front tires @32 pounds; rr super singles @ 30 pounds; trailer @ 9 pounds:
and the 146 mile wagon track from the 1860's:
Remember the number one nubbie truck camper dictum: always, always, always, buy much more truck than your given camper requires. Notice for off-roading I have no AC, nothing on the roof, and running as light as I can to support the 9 bike and motorcycle buds along.
The number two dictum is buy the camper first. Then find that "too big" truck to carry it.
My opinion is anything with a slide requires a 350/3500 dualie, two slides a 450/4500, 3 slides a 550/5500 dualie to carry it. Otherwise you have no margin with the weight police. I have a 2500/camper package with lots of suspension work to carry my 1850/wet Lance camper. We are used to it, but it is WAY small for people coming from a good sized 5-er. The fact is you are carrying everything on that rear axle not towing most of the weight with some of the weight on the pin.
What we have here is a bona fide paradigm shift. What seemed like plenty of truck to tow now is woefully inadequate to carry. Maybe hundreds of people on this very forum found out this the hard way. Profit by their collective wisdom.
regards, as always, jefe
'01.5 Dodge 2500 4x4, CTD, Qcab, SB, NV5600, 241HD, 4.10's, Dana 70/TruTrac; Dana 80/ TruTrac, Spintec hub conversion, H.D. susp, 315/75R16's on 7.5" and 10" wide steel wheels, Vulcan big line, Warn M15K winch '98 Lance Lite 165s, 8' 6" X-cab, 200w Solar