Think I figures it out, but am going to throw it out there, 2004 trailblazer when going down the road at 55 there is a slight hum in the front end, sounds like a wheel bearing, when slightly turn to the left going down the road the hum goes away, and slightly turning to the right the hum stays.

Question time, from past expierence, when the sound stays when turning a certain way, to the right for instance, does that mean that it is the left side? Or should I just replace both front bearings?