Off to the tranny shop!

Prob was a good part of it, yes. But the input bushing/convertor wear point to other problems too. Sometimes it's just like that. SOme thigns fall together and are perfect for years. Some wrestle you every friggin' inch. What you are now doing should be done on any build up but almost never is unless it's for a competition vehicle. Hell, I dont even do it unless a problem comes up or it's a race car...lol.