I think Rodney has this conversion. Toss the balancer and replace the flange wwitha yoke. Tom Wood recommends against it for manual transmissions because of t-case "chatter." The auto tranny can absorb it but the stick doesn't?

In the rear I'm not technically replacing my old drive shaft, I am just swapping out the CV yoke piece for a flange mount, so it I do have issues with that ujoint wearing out, I can swap the yoke back in and convert the t-case output to a yoke.