B&W makes the turnover gooseneck ball that stows in the bed center hole upside down for a flat bed. They also make a good 5th wheel adapter that fits inn the same hole. Has anyone seen whether the bed mounted gooseneck hitch on this truck will use the B&W system stem??? I've already got the B&W Companion 5th wheel hitch and if/when I get an XD, would be nice to know it will work there, my 5th wheel is well within weight limits of this truck.