pulling

First I would like to acknowledge how great it is to have a resource like this available. That being said, I'm looking for some suggestions to a problem I am experiencing on my 2007 2WD Envoy ~78k miles. When braking it pulls to the left, moving the steering wheel. My initial thought was that...

SYMPTONS: 1.Car pulls to the left 2.Vibration/Light Growling around 40MPH 3.Shakes at 80MPH 4.Rubbing noise from Drivers side wheel well turning right or left 5.Left and right tires squeal around every turn. FIXES: A.Balanced all tires and inflated to exact tire inflation. a.No difference...