harmonic balancer - damper

I run a professional products 90012 balancer on 2 of my 5.9 magnums. I have zero complaints thus far, really helped smooth it out.

Yes you can use the 2pc stock balancer in place of the 1pc stock balancer, all 5.9 magnums are balanced the same.
just to stay on the cheap, I'll see if I can't locate a 2-piece. If not, I'll probably go with the professional product 80012