Thanks. I went ahead and pulled the passenger axle last night. NAPA didn't have one in stock (that's what on the car currently, NAPA new axles .. well, from 07 or 08). I'll pick one up tonight and throw it in and see what happens.

The vibration is one thing and the noise at idle coming from the TC area is another. What about the bearing behind the TC? The Input shaft bearing? Not sure if that's the right word for it but the guy who rebuilt the trans in the other car said that's what it was.