Fabtech 07-18 Jeep JK 4WD 4-Door 5in Front & Rear Long Travel Coil Spring Kit2007 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