Quick Overview Bilstein B8 5100 shock absorbers are designed as a direct fit solution for lifted trucks and SUV’s. These shock absorbers feature a monotube design which provides consistent fade free performance. B8 5100 shock absorbers utilize a unique, velocity sensitive, digressive piston which reacts to changing road conditions. All B8 5100 shock absorbers are tuned for each specific application to assure optimal performance is achieved. B8 5100 shock absorbers offer a significant improvement in ride quality, handling, and comfort. Attributes: GTIN: 00651860568928 Brand Name: Bilstein Lower Mount Type: Eye 14mm Reservoir: No Collapsed Length (IN): 14.96 Body Diameter (ID): 46mm Series: B8 5100 Boot Included: Black Bellows Finish: Zinc Plated Internal Design: Monotube Extended Length (MM): 590.0 Adjustable Damping: Non-Adjustable Body Design: Smooth Body (Non-Coilover) Spring Seat Included: No Upper Mount Type: Eye 14mm Extended Length (IN): 23.23 Collapsed Length (MM): 380.0 Extended Information: Country of Origin: Mexico Emissions : Released Life Cycle Status: Available To Order Packing Information: Quantity of Each: 1.0 Package UOM: EA Dimension: 26.8000 x 2.9500 x 2.9500 inches Weight: 5.5600 lb PDF: USA SDS_Shock_Air Spring_V2_EN Generic_instructions_02