Supercab Doors come loose

[Blacktruckdave]

Happy New Year Forum.

My 08 Supercab doors come loose when I hit hiway bumps or go off road. They don't fly open, the are still closed but I hear them come loose and they rattle and I hear the wind rushing in. Everything looks good. No real signs of wear and all hardware is tight. I've read about the door seal mod but I can't believe that is the problem. Any help is greatly appreciated.
Also it seems to be the rear half door that is the culprit.