Setting: 5100 SeriesPosition: FrontDescriptor: Front Lifted Height: 0-2.5"; Torsion Key Lift / Leveled Quantity Needed Per Vehicle: 2*Collapsed Length (IN): 11.3*Extended Length (IN): 15.76*Collapsed Length (MM): 287*Extended Length (MM): 400.2Finish: Zinc platedReservoir: NoBody Design: 46mm ID smooth body (Non-coilover)Bilstein 5100 Series Shock Absorbers are high gas pressure monotube shocks designed specifically for lifted pickups, SUVs and Jeeps. The shocks feature a 46mm digressive piston with self-adjusting deflective disc valving. They offer super damping ability that makes them ideal for heavy hauling or occasional off-road use, while maintaining an exceptional street ride. (zinc-plated steel body, Triple-C-Technology coating )*Lift Height is suggested by mfg. Due to the many different aftermarket suspension systems it is recommended that a measurement is taken for proper application.