Rancho RS5000 Hydro Shocks & Steering Stabilizer Kit 1990-1993 Toyota 4Runner 2WD 4WD Part Numbers RS5145 and RS5187 and RS5402 Set of 4 Shocks & One Steering Stabilizer for vehicles at factory height or w/0-1" front Lift and w/0-1" rear Lift Fits 2WD & 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.