There's a vibration/humming coming from what seems be rear right...I thought it was the bearing, so I replaced it....noise still there. Even on neutral or car shut off. I did notice on long right curves, it quiets down....any idea?

 

Perhaps the left rear wheel bearing? If you're making long right curves, then the weight is being shifted from the left to the right, taking weight off the left side tires, which puts less stress on the bearing, making it quieter. Drive the car and (safely) turn left and right, as if you were driving a slalom course, and see if you hear it getting louder and quieter as the car shifts it's weight. Worth a try.

 

You were right....lifted the left wheel there's about a half inch play.