In order to hold a cornering car stable, the sway bar must be firmly anchored to the frame. If the sway bar is able to move in the frame brackets due to bushing "crush" or "give", the effectiveness of the sway bar is greatly reduced. Put PST Polygraphite® Sway Bar Bushings in your truck today and start cornering better. When ordering Polygraphite® Sway Bar Bushings, YOU MUST measure and specify in the order notes, the diameter (thickness) of the sway bar(s) on your truck..