Ok ,so out of the gate, your truck will feel more vague, bouncy etc with 3000lbs inthe rear end.
How your tiedowns are adjusted has 0 to do with howthe truck drives.
If those pics are with the camper loaded then it’s a featherweight and you have a very stout and very brand new suspension (stiffer). It’s barely engaging the uppers and not 100% engaging the lowers.
A sway bar will do 2x as much as spring blocks for the top heavy body roll feel BUT you do not NEED one. It would be a luxury with a camper that’s light or springs that strong.
You certainly don’t need airbags and you don’t need to be miserly with the weight. Fill the water, fill both propane’s, put the bumper back on.....don’t worry. Seriously.
