The TeraFlex Dual Rate S/T Swaybar System is one of the most advanced disconnect systems available with its easy engagement knob you can go from street to trail in seconds literally! The Dual Rate S/T Swaybar System gives you the best of both worlds. Engaged in the ‘street’ position, the bar allows for a stable highway drive. Disconnected in the ‘trail’ position, it allows your vehicle to articulate and your tires to bite despite the terrain with balanced suspension travel. The Dual Rate features two torsion bars, one for heavy duty highway handling and one tuned for off road articulation. The trail swaybar offers some resistance, but just enough to limit excessive body roll when in off camber and sidehill situations. It also helps to maintain and keep constant the vehicle’s center of gravity by keeping the vehicle weight distributed evenly. There is virtually no limit in articulation when running the Dual Rate S/T. To disengage the swaybar with the S/T system, simply twist a knob and you are on your way. To re-engage, rotate the knob again and the swaybar will self engage when the vehicle is level. Fits all TJ Wrangler models including the Rubicon and Unlimited.