Originally Posted by Scigheras

Well it's fixed

I removed and installed the prop shaft again today, did two things, no idea which one has fixed it:

1. I noticed when removing it that the rear CV was almost fully compressed in its joint whereas the front CV was almost fully extended. Maybe the vibrations came from the rear CV riding against whatever it is that it can ride against when its fully compressed? No idea if this makes any sense. But when installing the prop shaft again, this time I made sure both CV's were equally compressed/extended.

2. I simply bolted it up a full 180 degrees rotated/clocked from where it was previously.