Bilstein 5100 Gas Adj Shock Front Pair 07-16 Silverado 1500 4WD w/6" Lift Spacer Part Number 24-186940 Front pair of 2 shocks for vehicles w/6" front Lift; These parts fit models with front struts only and will not fit "Classic" Silverado/Sierra 1500 models. Excludes HD Models Fits 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.