Offering up to 1,000 pounds of load-leveling capacity, Air Lifts flagship kit, the Air Lift 1000, will make towing and hauling with a Toyota Rav4 a comfortable experience. For frequent use, our adjustable, industry leading air springs are the perfect partner for the vehicle, eliminating any issues users might face. The Air Lift 1000 system fits easily into the coil springs of coil-sprung vehicles, providing suspension support by allowing users to easily add air when carrying heavy loads to keep the vehicle level and stable. Adding air bags 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 that air springs provide, users can haul safely, knowing that you have optimal braking and steering control. The air springs are adjustable from 5 to 35 PSI, ensuring that the vehicle can be ready for any weight and any situation. Simply add air when towing or hauling and deflate when riding empty. As the leader in air suspension products for more than 70 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. With a lifetime warranty and 60-Day Ride Satisfaction Guarantee, not to mention the Air Lift reputation for great customer service and technical support, should there be any snags in the installation process, users can purchase this kit with peace of mind. Installing the kit is a simple process, requiring only common hand tools and no frame drilling, specifically designed to be installed in 2 hours or less. The Air Lift 1000 kit comes with a fully-illustrated, user-friendly installation manual, making the install process easy.