When driving my 2003 Buick Century it seems to hum a little. When turning left there is a noise that gets louder as the turn gets sharper. I guess its almost like a squeal scrape. Thats not very accurate but it is hard to describe with words. Brakes tend to vibrate when braking. I did notice when I changed my brake pads there was play in the left front rotor. Did not notice/ check the right side because I had already finished with that side. Should I replace my Wheel bearing/ Hub assembly?