The only adjustment is the toe and that won't make it pull one way all the time. Off enough it will dart or road wander though. A full-time pull in one direction indicates either the camber or caster is off..which means something is bent like an a-arm, frame or something is binding such as brakes on that wheel, bad wheel bearing or even a dry or binding CV joint. There is one other thing that can make one pull all the time one direction and that is a bent or damaged torque bar in the power steering unit...if one had power steering.