Ok, lets just say for chits and giggles I weigh..aaa..lets say 260. With the camper suported on the same structure as if it was in the bed of the truck not secured ,if there were 260lbs in the master ...
Talking about campers again, there is no way we can tip our 4200 lb camper even when rear holding tanks are empty. However with fresh water tank up front, I noticed floor separation when on the jacks. I reinforced some dry rot and cheap screws, but now I always have 4x6 sitting on block of wood supporting front floor. Small item to carry and not only takes worry away, but also adds greatly to camper stability when used off truck.