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: 00651860590431 Brand Name: Bilstein Internal Design: Monotube Lower Mount Type: Eye 14.1mm Boot Included: Black Bellows Spring Seat Included: No Series: B8 5100 Collapsed Length (IN): 16.18 Collapsed Length (MM): 411.0 Body Design: Smooth Body (Non-Coilover) Extended Length (MM): 665.5 Upper Mount Type: Bar Pin Extended Length (IN): 26.20 Body Diameter (ID): 46mm Adjustable Damping: Non-Adjustable Reservoir: No Finish: Zinc Plated Extended Information: Country of Origin: Germany 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: 5.6000 lb PDF: USA SDS_Shock_Air Spring_V2_EN E4-WM5-Y217A00