Highway Camper, I've got a 2006 Ram 3500, 5.9 CCSB. I run 285-75-16 Nitto Terra Grapplers, which I have had very good luck with. They are decent (for an AT tire) in mud, and ride great on the road. Suspension is completely stock, and those tires fit without any rubbing. As to the Power Tanks, I...