Arctic Fox 1150 is breaking my 2016 Ford 350 dually

To make things clearer, here are photos of my damaged bed in the F350 that I had previously:
Depression in the side of the bed at the rear
Plywood that sort of helped
Crack in rear sheet metal below tailgate caused by buckling


Update. I have horse stall mats in my aluminum bed. I am sure that is making a difference when I see your damage.

Rick