Air Lift LoadLifter 7500 XL Ultimate Air Helper Springs Rear Axle Air Air Lift LoadLifter 7500XL Ultimate for 17 19 Ford F 250 F 350 F 450 LoadLifter 7500 XL Ultimate Kit Air Lift LoadLifter 7500 XL Ultimate Air Spring Kit 57552 Air Lift Company Air Lift Load Lifter 7500XL Ultimate Helper Spring XDP Q&A YouTube Air Lift LoadLifter 7500XL Ultimate Air Spring Helper Kit for F 250 F. The LoadLifter 7500 XL Ultimate offers support for the heaviest tows with an internal jounce bumper, absorbing shock for the smoothest ride. Air Lifts fully adjustable, industry leading air springs are the perfect upgrade for your vehicle, eliminating any issues you might face when towing and hauling. With Air Lifts LoadLifter 7500 XL Ultimate and the added stability that air springs provide, you can haul safely, knowing that you have optimal braking and steering control. The kit offers up to 7,500 lbs. load leveling capacity while eliminating squat, trailer sway, body roll and bottoming out for select Ford F 250, F 350, four wheel drive, and select Ford F 450 non commercial chassis, four wheel drive. The LoadLifter 7500 XL Ultimate kit is set apart by a pair of massive 7 inch, double convoluted bellows air springs. The larger air springs allow for better leveling abilities at lower air pressures than similar systems, keeping your cargo safe and secure while ensuring a more comfortable ride. The closed cell urethane foam jounce bumper inside the air spring provides a cushion of air that absorbs shock, eliminates harsh jarring on rough roads, and protects vehicles carrying heavy loads. All end caps are made with an ultra high strength nylon composite formula, strong as steel but much lighter and corrosion proof. The air springs are built like tires, reinforced with 2 ply fabric for maximum strength. With the added stability that air springs provide, you can haul safely, knowing that you have optimal braking and steering control. The LoadLifter 7500 XL Ultimate has up to 20% more air spring volume when compared to Air Lifts LoadLifter 5000 series. The LoadLifter 7500 XL Ultimates air springs are maintenance free, can run safely on zero air pressure, and are fully adjustable from 5 100 PSI for precise control. Do not exceed the vehicle's gross vehicle weight rating (GVWR). This Part Fits: Year Make Model Submodel 2017 2019 Ford F 250 Super Duty King Ranch 2017 2019 Ford F 250 Super Duty Lariat 2018 2019 Ford F 250 Super Duty Limited 2017 2019 Ford F 250 Super Duty Platinum 2017 2019 Ford F 250 Super Duty XL 2017 2019 Ford F 250 Super Duty XLT 2017 2019 Ford F 350 Super Duty King Ranch 2017 2019 Ford F 350 Super Duty Lariat 2018 2019 Ford F 350 Super Duty Limited 2017 2019 Ford F 350 Super Duty Platinum 2017 2019 Ford F 350 Super Duty XL 2017 2019 Ford F 350 Super Duty XLT