rear wheel bearings

[blkranger]

So I had a bad wheel bearing in the front. Got it changed out and it's smoothed out. But now I hear a light roaring noise from the rear end while driving. It does it all the time. It does not get worse in turns. Could this be the wheel bearings? If so is there a way to figure out which one it is without having to tear both sides all of the way down?

 

[JoshMcMadMac]

If one is bad, they both should be replaced because the other one is most likely not far behind. It could definitely be the bearings. Does it change at all with speed?

 

[blkranger]

No change in noise level with a increase in speed.