an air ride suspension assembly or kit is provided for converting a leaf spring suspension arrangement on a motor vehicle having a solid rear axle to one supported by an air ride suspension assembly is disclosed in order to leverage the benefits of such air ride suspension systems to the conversion suspension assembly is disclosed . a leaf spring is removed and replaced with an upper support arm which is secured to the pre - existing leaf spring attachment sites on the chassis . a mount is then attached to the rear solid axle to which multiple connections are made from the upper support arm including an air bladder . the air ride conversion system can be supplied as a kit for installation by owners of vehicles where they routinely move heavy loads directly with the vehicle or by towing .