EAZ LIFT 12" Gooseneck Adapter, Includes All Installation Parts And Hardware (48500)

Will this work on a 2010f 350 with a flat bed ?

Dose it work with long beds?

Does this product bolt up to weekend warrior brand 5th wheel toy haulers or is there drilling required? Thanks.

I have a 2021 Gmc 2500. Can someone with this same truck tell which one you got. The 15 or 17.