Tranny Noise need help identifying

[XMAN]

Guys,
I have a PTS Tranny with 911 convertor, there is a clanking noise when I put the car in gear and also when the car downshifts when coming to a stop. I have checked for loose bolts but have not found anything.

 

[chris718]

check the flywheel and bolts,grounded exhaust system,universal joints, and transmission mount