Offering up to 5 000 pounds of load-leveling capacity the LoadLifter 5000 kit from Air Lift will make hauling a comfortable and stress-free experience. For frequent use our fully-adjustable industry leading air springs are the perfect partner for your vehicle eliminating any ride issues that you might face. The LoadLifter 5000 kit helps to eliminate problems frequently faced when towing and hauling such as squat poor headlight aim trailer sway body roll and bottoming out. With the added stability and weight-distribution that air springs provide you can haul safely knowing that you have optimal braking and steering control. With the ability to adjust the air pressure from 5-100 PSI your Ram ProMaster van can be ready for any weight and any situation (Note: Do not exceed vehicle's GVWR). An Air Lift exclusive each kit comes equipped with upper and lower roll plates added to protect the air springs from sharp edges while increasing the load capacity by 10%. The air springs themselves are built like a tire reinforced with 2-ply fabric for maximum strength. All of the end caps are made with an ultra high-strength nylon composite formula strong as steel but much lighter and corrosion proof. Installing the kit is a simple process requiring only common hand tools and no frame drilling. The LoadLifter 5000 kit comes with clear easy to follow instructions and an under frame design made to work with most in-bed hitches. As the leader in air suspension products for more than 75 years Air Lift is committed to delivering quality load support parts that last. To ensure the highest quality longevity and customer satisfaction the key suspension components including the air springs and all hardware have all been torture-tested to 1 million cycles on our hydraulic test rig the equivalent of 100 000 miles.