Get the most out of your 2011-2019 GM 2500/3500 4WD off-road with the Bilstein 25-254785 5160 Series Shock Absorber. This monotube shock features a self-adjusting disc valve that instantly reacts to changing road conditions to give you truck the ultimate handling on and off-road. The 5160 series shocks have a remote reservoir for greater shock oil capacity for better heat dissipation. Specifications:Â Part Number: 25-254785 Series: 5160 Series Drive Type: 4WD Position: Front Descriptor: Front Lifted Height: 1.5" Quantity Needed Per Vehicle: 2 (Sold Individually) Finish: Zinc Plated Reservoir: Yes Body Design: 46mm ID Smooth Body (Non-Coilover) Measurements:Â Collapsed Length (IN)13.86 Extended Length (IN)18.52 Collapsed Length (MM)352.0 Extended Length (MM)470.5 Applications: Silverado 2500 HD 2011-2019 Silverado 3500 HD 2011-2019 Sierra 2500 HD 2011-2019 Sierra 3500 HD 2011-2019 Note: Lift height is suggested by mfg. Due to the many different aftermarket suspension systems it is recommended that a measurement is taken for proper application. Sold individually.