The latest air helper spring suspension products and accessories from Firestone Industrial Products Company, LLC are highlighted in a new 2011 catalogue and application guide. Firestone’s complete suspension solutions include Ride-Rite, Sport-Rite, Coil-Rite and Level-Rite air helper springs; Work-Rite load assist springs; and the R4Tech hybrid air/leaf suspension system. The R4Tech system, which has Firestone Ride-Rite air spring and Sanluis Rassini suspension technologies, is designed to replace the factory leaf spring suspension to deliver an improved ride at all times by utilizing the variable spring rate of the air spring to stiffen when the truck is loaded and soften when unloaded. Firestone’s catalogue features detailed descriptions on their newest products for today’s cars, trucks, SUVs, vans, motor homes and RVs, including the Dodge Ram 1500 Rear Coil to Air Conversion System — a no-drill, full air conversion kit that is designed to completely replace the factory coil spring with an air spring, converting the rear suspension to an Airide suspension for higher levelling capacity (up to the Gross Vehicle Weight Rating [GVWR] of the vehicle) than traditional systems. An overview of the company’s custom components for hot rods and unique builds — including air springs, compressors and air tanks — is also showcased. In addition to the catalogue, Firestone offers 2011 application guides that allow dealers to search parts by vehicle make and model for both its Ride-Rite and R4Tech lines. The application guides feature a reverse parts lookup of the most popular kits as well.