If that were the case, why is the cab all jacked up in the rear? If it were just the bed, the cab would still be level and you could see the frame under the bed.
But to Eddie's point, I saw that and was scratching my head. I would have thought the extender used on the hitch would have given way long before the frame of the truck. We have friends that have a similar set-up, except a SRW 350. They have the truck camper that sticks out, use a 4' hitch extension, and tow a small stock trailer with Nigerian Dwarf goats. Not all that heavy and it scares me because of the extension.