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.Features & Benefits 46mm monotube design ensures consistent fade-free performance in all conditionsPatented digressive valving instantly reacts to changing surface conditionsVehicle specific tuningAdditional Attributes Adjustable Damping:Non-AdjustableBody Design:Smooth Body (Non-Coilover)Boot Included:Black BellowsCollapsed Length (IN):15.55Collapsed Length (MM):395.0Extended Length (IN):24.33Extended Length (MM):618.0Finish:Zinc PlatedInternal Design:MonotubeLower Mount Type:Eye 14.1mmPartType:Shocks / StrutsPiston Diameter:46mmProp 65 (Y/N):YProp 65 - Short Label:WARNING: Cancer & Reproductive Harm - www.P65Warnings.ca.govReservoir:NoSegment:Light TruckSeries:B8 5100Shaft Diameter:14mmSpring Seat Included:NoStroke/Travel Length (IN):8.78Stroke/Travel Length (mm):223.0Title:Bilstein Shock AbsorbersUpper Mount Type:Eye 14.1mm