Keep in mind that the panhard bar does not have to be a straight piece of tubing. The line drawn through the bar ends determines the angle of the bar. The closer to level this is at ride height and the longer the bar, the less the side to side movement you will have. The higher the bar is mounted, using the center of the bar as a reference, the less body roll you will have. If the bar has bends, it will need to be heavier wall and/or larger tubing.