Avalon 2005-12 :: Slight Noise From The Drive Train

Kind of stuck on a slight noise from the drive train on our 2007 Avy. It is not engine noise at a certain RPM it is from rolling at speed. I first rotated the tires and there was no difference at all. I thought it sounded like a CV going out so I replaced the left shaft. No luck. I could still hear it as it increases from nothing being stopped to being able to be felt slightly in the steering wheel either traveling straight or turning the worst between 60 and 65 MPH.

I replaced the right CV shaft and noticed slight wear in the support bearing and the support bearing bracket pinch bolt's rubber pad was worn in half. Ok, new CV shaft, new pinch bolt, tightened to specs, no luck. Ok, onto wheel bearings. I could still feel it in the steering wheel and it "sounded" like it was coming from the left side. I even rode as a passenger and moved about trying to get a better idea where it was coming from. I was convinced it was on the left so I pressed out the old bearing and installed new. No luck, same sound at the same speeds.

I replace the right wheel bearing (replacing a front wheel bearing on this car is not a fun job). Slightly better but still there. It's a subtle noise now but at the same speeds. I guess it could be a rear wheel bearing assembly but maybe I am missing something obvious.