The Tubular Series LDG Traction Bar Kit feature tubular traction bar construction, and adjustability that enables you to control unwanted axle wrap, without restricting suspension travel. The all-new SM Series Limited Dynamic Geometry (LDG) Traction Bars deliver class leading performance without sacrificing ride quality. Engineered with precision adjustability, the SM Series Traction Bars give you the ability to quickly and precisely adjust your traction bars to minimize dreaded axle-wrap without restricting suspension travel. The SM series heavy-duty (boxed Sheet Metal) construction and signature design, deliver both optimum performance and unique looks that will make your vehicle stand out in the crowd. Made in the USA. Details: Heavy-duty Tubular Construction After-Installation Adjustability for Optimum Performance Unique Design Package Does Not Fit F-350 Dually Limited Lifetime Warranty Made in the USA Series: Tubular Series Lift Height: 0-4.5 Inch DOWNLOAD INSTALLATION GUIDE Cognito 120-90582