Newbie question so please be patient. Recently I purchased my first slide in camper, my Mrs wants to give it a go ? [I am a hotel type guy, but what he heck]We got an older (1988) northstar pop up for...
sonofgun, Your truck and camper setup should be no heavier than mine.
With a full camper, my rear axle weighs 4000#, or 2000# per tire. The LT tires have 500# of extra capacity or safety margin. It's enough.
My experience with stiffer "E" rated tires in that running the tires at lower pressures caused the tires to "cup" and wear prematurely on the outside edges.