Drivetrain Bad tailshaft bushing or u joint?

Fighting a vibration that persists around 70 mph. Was thinking bad u joints, but I'm second guessing after looking it over. I am noticing some play in the yoke. Not sure if that much play is expected. If it isn't...is it because the tailshaft bushing is bad or because the u joint is failing causing it to move... Video link to below that shows the movement. Thoughts?

View: https://youtu.be/3-CenJAxdRw


View: https://youtu.be/3-CenJAxdRw

General karthief said:

Well it's not leaking, how old are the u joints? I'd get new ujoints and get the shaft balanced

Click to expand...

Not sure how old...but they look like they have been there a while. Im going to replace them anyway since I have the driveshaft already out and new u joints already in hand...so good suggestion to start there. Not sure where to take the drive shaft to for rebalancing. Ill ask my favorite local parts store if they know any local places that can do it. Thanks!