Black Diamond's 6" system raises performance standards both on and off-road. New pre-set coil springs provide lift while maintaining factory ride characteristics. Drop brackets relocate both the factory upper axle-to-frame links and the new Black Diamond lower links that feature premium factory type, steel encased rubber bushings at the upper ends. This combination of rubber upper / Urethane lower bushings transmits less driveline vibration, extends service life and provides quieter, less "squeak prone" operation. New, rebuildable front/rear adjustable track bars center the axles side-to-side, improve on road handling characteristics, and increase off-road suspension travel. Also included are a dropped pitman arm, front anti-sway bar quick-disconnects and rear anti-sway bar links. Shocks are sold separately. Slip-Yoke Eliminator Kit (SYE) (except Rubicon models) and new CV type driveshart are required.