FRIEND OF MINE HAS THIS SITUATION. 2011 f150 with 5.5 box, 2013 brute force and a travel trailer. while hauling the quad the rear tires sits on the tailgate but in order to haul the travel trailer the tailgate has to be up or removed as it will hit while turning. I have seen those atv risers on the net but not sure if they will be enough to get the rear tires resting on the box of the truck so that the tailgate can be removed??? any ideas of how to make this happen other than selling the truck????