The overload supports (or whatever they are called) look fine in your pics. On all of the trucks I've looked at, including my own, those overloads are just a hair shy of making contact with the frame. But, when you add a bunch of weight in the bed and the bed sags a little, those overload supports will contact the frame a provide additional support. I'm not sure what could be your problem, but those overloads look fine with that little gap.