COMPATIBILITY – Fits 2017-2019 Ford F-250 Super Duty; 2020-2024 Ford F-250 Super Duty; 2017-2024 Ford F-350 Super Duty GET THE RIGHT PART -- Before purchasing, research to ensure that the part will fit your vehicle; enter all vehicle information (year, make, model, engine and trim) for compatibility and check qualifier notes NINE LEVELS OF PERFORMANCE -- Nine-position easy-to-adjust knob allows customized damping control and firmness for on-road and off-road flexibility DESIGNED FOR HARDWORKING VEHICLES -- Ideal for stock or lifted trucks, SUVs and Jeeps that tow, haul or go off road INDUSTRY FIRST -- Recognized as the first nine-position manually adjustable shock series in the off-road market REDUCES FADE -- Nitrogen gas pressurized to 120 PSI to minimize air-to-oil mixture and reduce damping performance fade and foaming STRONG AND DURABLE -- Features an application-specific 18mm nitro-carburized piston rod to reduce scuffs and rust, double-welded loops at stress areas and 1.25-in. sintered iron piston for enhanced structural integrity HANDLES EXTREME TEMPERATURE CHANGES -- Up to 2.75-in. tri-tube body (application specific) filled with all-weather fluid allows for cooler operation, increased vehicle control and ability to withstand internal temperatures of -40 to 248°F SMOOTH PERFORMANCE -- Polyurethane rebound bumper and bushings and graphite-filled fluon-banded piston help absorb ride harshness and enhance responsiveness to changing road conditions for an overall smoother ride BUILT TO LAST -- Low-friction, self-lubricating seal retains gas and oil for quicker rebound and smoother compression while the long-lasting premium liquid metallic finish and polyvinyl protective boot ensures longer life