AL-KO Xtreme Heavy Duty Shocks are designed for trucks and vans that carry heavy loads. AL-KO Xtreme Heavy Duty Shocks are engineered to improve vehicle stability and reduce body roll when turning and nose-diving during braking. AL-KO Xtreme Heavy Duty Shocks offer a high performance option for maximum vehicle specific damping forces. AL-KO Xtreme Heavy Duty Shocks are engineered to provide superior off road, hauling, and towing control. AL-KO Xtreme Heavy Duty Shocks include Fuchs Low Viscosity High Performance All-Weather Hydraulic Oil to provide both excellent thermos-stability and constant damping forces at high operating temperatures. The included monster seamless tubes provide a greater oil capacity than standard aftermarket shocks. The combinations of galvanic hardened-chrome plated piston rods provide an increased fluid displacement that provides quick reaction rates to road impacts. The included precision-engineered valve system easily controls vibration and spring oscillation. AL-KO Xtreme Heavy Duty Shocks deliver firm control without a harsh ride. AL-KO Xtreme manufactures quality products that are built to last.