[tdangle]

I agree with others, take your driveshaft complete to a driveline company. They will check it out repair as needed, phase it and rebalance it as needed. Well worth the couple hundred dollars. At least this portion of the driveline will be correct. Good luck with the vibration, I'm still chasing mine after engine, transmission, driveshaft, wheel/tire, brake drums, front end, rebuilds and replacements. When you do find the source make sure you report it as I've followed way too many posts here and elsewhere that had vibrations and never shared what fixed it.