I would imagine your camper is hundreds of pounds heavier wet with "stuff'. Still plenty light for a popup. Maybe someday they'll have underbed storage like the flatbed model. I drove a recently Carli equipped Pintop setup F-250. 4-door longbed,6.2 cab high camper with construction rack,315-70-17 BFG's and a RT. It performed brilliantly. The power was decent but the average mileage read 8.9 mpg on the dash. He had just driven home from Gonzaga Bay on his bumpstops as one Firestone bag popped. He had Carli's soft springs which the garage advised against as he would be dependent on psi.