Would a anti roll bar be good to have ???Yes but it is not the end of the world. A ladder bar car could be set up to go straight without one. It really needs to be put on scales with driver weight in seat and set up with about 20-30 lbs heavier on right rear than lt. he is 130 lbs light on the rt rear that is why it is going rt. left tire is working harder and driving the car rt.