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:
View attachment 1716313401or
View attachment 1716313403depending 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:
View attachment 1716313404
Weighted 5.9 flexplate:
View attachment 1716313405
LA flexpate (all varieties):
View attachment 1716313406