Thanks for the response Tim.

Believe me, I have learned my lesson marking things next time, good learning experience I am sure I won't forget for the rest of my life.

Went to another driveline shop today, no jig that fits this setup to balance it. The nice guy there cleaned up the contact points with a wire brush, and removed some rust, so that may help a tiny bit in lining things up again. I am going to retry the install tonight. Maybe I screwed up the alignment somehow last time. If it still vibrates again after this install, I think I will lean towards just buying a whole new shaft. Was looking at the ones on ebay for $350-500 bucks. Anyone have experience with those or care pointing me in the right direction, if I end up going the route of whole new shaft?