Yesterday my car became undrivable. It wants to wander all over the road. It will not go straight. Whenever it goes in a little divet in the road it goes all over the place. I rebuilt the front steering from the servo to the tie rods and that made no difference. When I have the car in the air and give it throttle I steer the front around a little and it jitters left and right the whole time. It never really wants to stay straight. I fired up my other car which I'm keeping nice not for bashing and it doesn't do this. Where you steer it in the air it stays there. When you let go of the steering it goes straight and doesn't go left and right. Is my servo bad ?? I've played with toe in and toe out it makes no difference.