Are all 5.9 Magnum flex plates the same? 904 install issues.

Either setup will work as long as you have either all "before" or all "after" converter and flex plate.

I am running a "before" TC with an "after" flexplate on my 5.9 swapped '91 Dakota. The converter was behind a 318, so no weights, and the later flexplate for the 5.9 , to get the balance weights. Had to oblong one hole but not horrible to do.