Bilstein 5100 Gas Shock & Stabilizer Kit 11-16 Chevrolet Silverado 2500 HD Part Numbers 24-196468 and 24-253161 and 33-196619 Set of 4 Shocks & One Steering Stabilizer Fits 2WD & 4WD vehicles All necessary washers, bushings, and nuts included. Factory shock mounting bolts are reused for installation. Bilstein's Limited Lifetime manufacturer's Warranty protects against defects and premature failure.