I just had my left control arm, and axle replaced, and just got an aligment done. When I put the wheel straight, the car goes straight. but if i'm driving and let go of the wheel, it will turn slightly left, and the car will go left.

 

did you curb anythign? maybe it's the road.

 

alignment

 

Go have your alignment redone and post the specs from the print out they give you. Something is not right, my guess is the camber is slightly off on one side.