Everything I read says all they did was move the weights on the back end from the converter to the flexplate...the balancers should all be the same for all 5.9 Magnums. I would just use the weighted flex plate with a neutral converter...
yeah...took weight off converter and put on flexplate...now you can use neutral balancer...
also I believe the flexplate to converter bolt pattern no longer has one offsetted lug since there is no need to made sure the weight on the converter is located at a certain position...
so if you have an older converter with the offsetted lug...you will need to enlarge one of the flexplate holes.