Resonating vibration

So if the torque converter is weighted what should I do?
You need to determine what you have.
Where on the convertor is this "weight"?
If it is on the outer shell it is just a weight to balance the convertor to neutral specs.
A weight for balancing to LA 360 spec is located on the forward face of the torque convertor.
Early 5.9 Magnums ('93-'94?) had a neutral flexplate and a completely different weight on the convertor.
All later Magnum 5.9s do not use any external balancing weight. The weight is on the flexplate.
Weighted LA360 convertor:
1728443961895.pngor1728444176326.pngdepending on year. The balance remains the same, they just split the weight into 2 so they could add a drain plug.
Weighted 5.9 Magnum convertor:
1728444263301.png
Weighted 5.9 flexplate:
1728444435691.png
LA flexpate (all varieties):
1728444694770.png