The Tuff Country 4" lift kit includes front and rear EX-Ride coil springs, front & rear track bar bracket, rear sway bar end links, EZ-Flex lower control arms with polyurethane bushings, power steering pitman arm and a transfer case drop. Four SX8000 Nitro shocks are included. Shock boots sold separately. EZ-Flex control arms' unique design and function deliver the best highway driveability available in performance control arms. The specialized design minimizes stress on frame and axle mounts and results in greater axle movement. Bushing and sleeve design provides the best highway steering control and minimizes darting and road wander. Simple adjustments to EZ-Flex Arms will help eliminate most drive line vibration.