This is a good point. I know there is some bad rust under the cab. I will check. But I think it is the bed, becasue I can see it has pushed up against the bumper in the back driver's side, and hanging over on the other side. Same thing behind the cab. It looks like the entire bed has shifted to the passenger side. I don't understand how all 6 bolts could break at once. I did have a half ton of wood pellets placed on the bed with a fork lift about 3 weeks ago - maybe it broke then, and just did not move until now.
Thank you very much for the ideas.
I will post again after I spend some more time underneath.
