Slide the aluminum sway bar arms onto each end of the tube. If necessary, use a rubber mallet or a soft block of wood to drive the arms onto the bar. Don't hit the bar or tubes with a metal hammer because it could damage the splines, making installation impossible. To make sure both arms are indexed the same, lay the bar assembly on a level surface; it should lie flat and not wobble. Install the arm pinch bolts using the supplied fasteners with a washer under the head of each nut and bolt. Don't tighten; the arms will need to be adjusted later.