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: 00651860453637 Brand Name: Bilstein Reservoir: No Body Design: Smooth Body (Non-Coilover) Collapsed Length (MM): 380.5 Spring Seat Included: No Internal Design: Monotube Lower Mount Type: Bar Pin Upper Mount Type: Stem Extended Length (IN): 24.63 Boot Included: Black Bellows Collapsed Length (IN): 14.98 Adjustable Damping: Non-Adjustable Body Diameter (ID): 46mm Finish: Zinc Plated Series: B8 5100 Extended Length (MM): 625.5 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 3.5500 x 3.5500 inches Weight: 5.4000 lb PDF: USA SDS_Shock_Air Spring_V2_EN E4-WM5-Y217A00