Ya, me too on Mischif's post. Use what you had if your going to remove or modify the part. Keep things matched up as best as possible, but replacing bearings pretty much leaves it open for anything at that point.
Removing balance shafts or keeping them always reminds me of talking about religion and politics. Some do and some don't and others might.

The final say is that it's your truck, do what you want with it.