did some seaching on this there is a lot of people out there that seem to have this problem . called ford and they said " nothing we can do u are out of warranty " trying to get some sort of genneral number of how many people have this problem.
also trying to find some atfer market company that makes the rear frame section ford dosent sell it. they said anything needed for a frame needs a hole new frame and for 2500 bucks no way. also checked salavge yards around my area and one has one worth anything they are just as bad as mine. broke my driverside rear spring pertch of the frame and it took the frame with it. when i had the bed off fixing this problem found my cross member for the gas tank was rotted also the rear plate that hold the spare tire in also rotted. will put pics up soon.