JimK-NY wrote:
You have a camper with a weight of about 2500# with standard equipment. Adding personal items, any additional accessories, outdoor chairs, etc, can easily raise the weight to the range of 3500-4000#. With that weight I am surprised the springs have only dropped a half inch or so. It is best to have the camper sitting flat in the bed or the truck. That helps to minimize strain and any potential damage to the floor of the camper or bed of the truck. A board under the back of the camper would also leave the truck pointing somewhat upwards and the headlights would not be aligned and would likely blind oncoming traffic.
There are a great many potential solutions, including Timbrens, Supersprings, and airbags. You should also weigh your rig to be sure it is within the load capacity of the truck and especially fails within the load capacity for the rear tires. Again, suspension mods mentioned can help but you may also need to upgrade your tires to higher load capacity.
I have already upgraded my 2016 F250 with super prings and I have air bags installed and I added a swaybar to the rear since Ford no longer installs swaybars on their trucks. I'm running size 18 on my truck but was recommended to go the next level running 19 inch rims and 19 inch tires but ford says my 18 inch rims and tires are within the weight load for the truck and camper and it would be an over kill if I added 19 inch tires and rims. My super Springs weight max is 3,100 to help out with the load in the truck bed and my air bag are at 80 pounds each both the front and rear tire wells are level from the top to the street level so my truck is level and not rear end heavy or as most would say your ass is dragging. Ford measured my truck bed and it is level does not tapper to the tail gate and I don't have a bend in the truck bed floor all I have in the back is the stall pad for the camper to rest on. I hate beating a dead horse on this issue but it's just not sitting right and I know its going to bug me what I see other camper like mine on the same trucks that don't have this issue.