Andersen Ultimate center of weight vs rear axle

By the way, the highly rated B&W Companion 5th wheel hitch also places all weight and any movement directly on the truck bed steel, and not on any under lying support structure. It attaches to the truck gooseneck opening with its own shank in the hole, and is torqued pulling up on the gooseneck platform to seat the frame tightly to the truck bed. Same basic logic as the Andersen. The B&W is what I used on my 2011 chevy long bed dually and I never noticed any chucking or bed deformation.