Rancho Quicklift leveling Struts + Rear RS9000XL Shocks Kit - 04-08 Ford F-150 4WD Part Numbers RS999286 and RS999910 Front Pair of Struts & Springs + Rear pair of 2 shocks for vehicles at factory height or w/0-2.5" front Lift and w/0" rear Lift Fits 4WD vehicles Front height not adjustable from specified height. 9 settings of compression and dampening adjustment. Rancho's limited lifetime warranty protects against defects and premature failure. Rancho's 90 day ride guarantee covers RS5000X, RS7000MT, and RS9000XL shocks.