Rancho RS5000 Hydro Shock Set 88-99 Chevrolet K1500 4WD w/1-2.5" Lift RS6427 Part Numbers RS5152 and RS5190 Set of 4 Shocks for vehicles w/1-2.5" front Lift and w/1-2.5" rear Lift; w/Rancho RS6427 System Fits 4WD vehicles 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 90 day ride guarantee covers RS5000X, RS7000MT, and RS9000XL shocks.