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: 00651860597669 Brand Name: Bilstein Finish: Zinc Plated Body Design: Smooth Body (Non-Coilover) Reservoir: No Collapsed Length (MM): 416.8 Internal Design: Monotube Lower Mount Type: Eye 12.1mm Adjustable Damping: Non-Adjustable Boot Included: Black Bellows Series: B8 5100 Extended Length (IN): 27.56 Upper Mount Type: Stem Extended Length (MM): 700.0 Spring Seat Included: No Collapsed Length (IN): 16.41 Body Diameter (ID): 46mm Extended Information: Country of Origin: United States 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: 4.6300 lb PDF: USA SDS_Shock_Air Spring_V2_EN E4-WM5-Y217A00