The TeraFlex TJ S/T Swaybar System is the most advanced manual swaybar disconnect system available. With the easy engagement knob you can go from street to trail in seconds! The S/T swaybar gives you a heavy duty torsion bar for highway handling. When engaged in the 'street" position it provides an extremely stable highway ride, and when disconnected the front axle is allowed unrestricted movement. The swaybar arm features several link mounting points to fine tune the torsion rate. Engagement and disengagement of the swaybar is simple as a twist of the knob - and you are on your way. Fits all TJ Wrangler models with 4"-6" of lift. Note: Wheels must have 4.5" or less backspacing.