Bilstein 5100 Monotube Gas Shock Rear Pair 1999-2013 Ford F250 F350 4WD Part Number 24-186025 Rear pair of 2 shocks for vehicles at factory height or w/0-1" rear Lift 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.