The Tuff Country 3.5" EZ-Flex lift kit for the Jeep Grand Cherokee ZJ includes front and rear EZ-Ride coil springs, front and rear track bar bracket and front brake line extensions. The included EZ-Flex lower control arms with poly bushings are designed to minimize stress on frame and axle mounts resulting in greater axle movement. This design provides the best highway steering control and minimized darting and road wander. Simple adjustments to EZ-Flex arms will help eliminate most driveline vibration. Longer shocks sold separately.