2007-18 Jeep JK 4WD 4-DOOR. These American made coil springs are a true Dual Rate design allowing for long travel suspension use offroad with a smooth highway ride. In the first stage of the spring they provide a soft ride with the ability to extend for long travel range. The second stage is designed to handle the payload of the vehicle and address large impact absorption at higher speeds. These Dual Rate Long Travel springs have been designed in conjunction with all Fabtech suspension systems and shocks to eliminate the need for spring retainers or limiting straps. They stay seated though out the suspension travel and articulation range. Features: True Dual Rate Long Travel design. Comfort ride with carrying capacity. Allows for maximum articulation and travel. American made quality. 3in Rear Long Travel Coil Springs.