Magnum 5.9L vibration

Hi. Not trying to sound like a smart ***. But you do know that you have to file one of the bolt holes to get a after market converter to work with the stock magnum flex plate. I had to do that to get my 8 inch coan converter to fit my 2000 360 magnum engine
Absolutely! I have it, I know that torque converters could have different bolt pattern (diametr). Stock one, Atp-z332 is 10 inch bolt pattern, I have 11 inch torque converter, and I’ve tried to install different ones, with zero result. I have massive, heavy “circle” vibration, looks like my torque converter is having heavy disbalance. I have it new but could be the case it’s not filling with the oil correctly? I’ve read this in reviews for b&m but looks like it’s the case for my tci.