Argh Nissan replaced Rear Axle Joint/bearing, Now there's a sound.
 

Well I took my car in for tire feathering and the thud noise in the front suspension when turning. They fixed the tire noise great, but for some reason they replaced the rear axle bearing, even though I had no problems or sounds coming from back there. Get the car back and now you can hear a metallic spinning noise coming from the rear axle. Geez!!!! Now I have to go back to the dealer.