Front Pair of Struts & Springs + Rear Pair of Shocks Front height not adjustable from specified height. 9 settings of compression and dampening adjustment. Shock boots included with RS9000XL shocks. Twin tube nitrogen gas charged design with 9 settings of compression dampening adjustment. All necessary washers, bushings, and nuts included. Factory shock mounting bolts are reused for installation. Rancho's limited lifetime warranty protects against defects and premature failure. Rancho's limited lifetime warranty protects against defects and premature failure. RS9000XL series shocks include a 90-day ride guarantee. Front Pair of Struts & Springs + Rear Pair of Shocks. Front height not adjustable from specified height. 9 settings of compression and dampening adjustment. Shock boots included with RS9000XL shocks. Twin tube nitrogen gas charged design with 9 settings of compression dampening adjustment. All necessary washers, bushings, and nuts included. Factory shock mounting bolts are reused for installation. Rancho's limited lifetime warranty protects against defects and premature failure. Rancho's limited lifetime warranty protects against defects and premature failure. RS9000XL series shocks include a 90-day ride guarantee.