The chassis cab trucks came with a heavier bolt in leaf pack. I've long wanted to grab one. The hitch is a 1500/15000, so intentional overkill for the 1000# of tongue weight and ~9000# loaded weight. The truck has new Bilsteins which helped tremendously. I don't really notice the Hellwig sway, but the front shock strut things that hook up down by the wiper cowl made a noticeable improvement. We're focusing too much on the truck though, I'm more curious if the camper sitting in the bed nose up is an issue or fairly normal with these 12 footers.