Pro Comp Mx-6 Monotube Adj Shocks Rear Pair fits 04-15 Titan 2WD 4WD w/6" Lift Rear Pair of Shocks - Fits Vehicles w/6" Lift Shock boots included with all shocks. Adjustable monotube gas design, with 6 settings of compression or damping adjustment. All necessary washers, bushings, and nuts included. Factory shock mounting bolts are reused for installation. Pro Comp's limited lifetime warranty protects against defects and premature failure.