Fixed it, but still will be geting a new y pipe.
Fix was to get an L bracket, cut it down to just the "elbow" leaving one hole still open. Locked in bracket with muffler clamp, this basically replaced one side of the flange, installed new bolt where old one was. Put new bolt in with washers and spring on then nut on th end, same size as other bolt and it SWIVELS like the other bolt.
Everthing is tight and moves around like original. Done. I'll post some pictures.
I was the monkey of this operation, ideas came from good friend who has worked on ford cars for over 30 years.