Crushed F-150

Looks to me like maybe he had a slider hitch with the hitch in the rear position. This put too much weight on the trucks frame behind the axles, as he was jockeying into position, and bent it.

The blown out rear window is what makes me think that may be the case.
I have no idea what the pin weight of that 5er is but it looks like it was obviously too much for that truck!:E
Barney

Pictures can be deceiving!
Could be that the 5er was not locked into hitch, pulled forward and it fell on the tailgate.

Nah, thats one of those new fastback F150s.

Looks to me like it's still on the hitch and legs up. I guess he could have raised it back up and then backed back under it to try to make it home. Aluminum bed?

Simple.......
Didn't do a 'pull test' before traveling

Besides an F150 and a 5th wheel are never a good match