Replaced center bearing and still getting vibration, WORSE!

I recently replaced the first universal off the transfer case on my rear drive shaft and while doing so the mechanic noted the center bearing was getting a little slack so I had it changed also.

After getting the truck back I noticed the vibration that wasn't too bad prior to the center bearing replacement was quite noticable at 60 Kmh and just kept getting worse as speed increased.

Everything is stock on my supsension, so the usual issues with lift kits don't apply.

Any ideas, other than the mechanic didn't mark the shaft when he pulled it, and I'm having balance issues now, or could it be something else?

 

I beleive the driveshaft has to be oriented correctly or it'll be unbalanced.

 

I've done U-joints myself several times, and would have done the center bearing too if I have a place to do it. I' afraid they didn't mark anything when they changed it out so that the balance points are now out between the front and rear drive shaft sections. We'll see tomorrow, it goes back to see what has happened.