Offering up to 7,500 lbs. of load-leveling capacity*, the Atlus A7500 XL kit will make towing and hauling a comfortable and stress-free experience. Fully adjustable from 5-100 PSI, our air springs are the perfect partner for your vehicle, helping to eliminate problems frequently faced when towing and hauling, such as squat, poor headlight aim, trailer sway, body roll, and bottoming out. Installing the kit is simple, requiring only common hand tools and no frame drilling. The Atlus A7500 XL has clear, easy-to-follow instructions and an underframe design that works with most in-bed hitches. Each kit has upper and lower roll plates to protect the air springs from sharp edges. The air springs are built similarly to tires, reinforced with 2-ply fabric for maximum strength. All end caps are made with an ultra-high-strength nylon composite formula, as strong as steel but much lighter and corrosion-proof. The internal jounce bumper absorbs shock and allows the air springs to safely run with zero PSI.