Please help me solve my issue before I sell this thing!!

I have a clunk at 55+MPH coming from the rear driver tire. Braking does not make it go away or get louder. Brakes have been gone through to ensure functionality.

Is this a possible bearing noise, or do I have rear end issues? It is only making this sound on the driver rear side and will not produce the sound on a lift. Their is minimal slop in rear end and when moving wheel bearing.

Here is a link to the clunking around 60 MPH

https://drive.google.com/file/d/0Bw3...ew?usp=sharing

Thank you all so much