external parts "Wobbling" from loose/eccentric/out of round parts would be different/visible on that specific part as opposed to vibration coming from the crank being out of balance either from the wrong tc/plate or wrong bobweight amt when it was balanced.
In these pictures you'll see I have the correct magnum weighted torque converter, first picture is my torque converter, second picture is from a guy o line that pulled a factory trans from a 1995 Dodge Ram 2500 with a 5.9 magnum. My converter looks identical, the weight looks the exact same. Third picture is a little crack that I found in my converter by the teeth where the starter Engadges, I'm going to guess that the starter was sticking at some point and smacked the teeth on the converter while the engine was running and that caused this crack. I don't think it's causing my vibration but it will need to be addressed at some point.
