Product Description Air cell is a low cost, maintenance-free microcellular urethane spring Designed to reduce vehicle squat and enhance ride comfort. Aircell's closed-cell urethane foam provides a cushion of air that protects vehicles with heavy loads from rough bumps and squat. Air cell is more durable than rubber suspension load support and also provides a more comfortable ride by eliminating the harsh jarring sometimes experienced with rubber bumpers when driving on rough roads. Economically priced and completely maintenance-free, aircell suspension Boosters give you a comfortable, safe ride. No inflation required; just install it and forget it! Aircell is engineered by air Lift, the air suspension leader, for vehicles that maintain constant loads such as work trucks, fleet, and delivery vehicles. From the Manufacturer AirCell, a microcellular urethane spring, is a lower cost, no-maintenance product to reduce sag and improve ride in constantly loaded vehicles. Easy to install, most AirCell springs mount between the frame and axle/spring, in place of a jounce bumper. They provide a better ride than rubber load supports or steel overload springs, and are half the cost of most steel overload springs. Tough and long-lasting, AirCell springs are made from the same rugged material as factory jounce bumpers.AirCell is engineered by Air Lift, the air suspension leader, especially for vehicles that maintain constant loads such as work trucks, fleet, and delivery vehicles. They're great for anyone whose truck is always loaded, and wants load support and ride quality at a very affordable price. Rear kits keep heavily-loaded pickups level and greatly improve ride, while front kits provide support for trucks with snow plows or other heavy front equipment.Application Information This AirCell kit, number 52203, is a rear application for the 1999 to 2009 Chevrolet Silverado and GMC Sierra, model 1500, 2-and 4-wheel drive (non-HD models). This kit is one of Air Lift's over 230 no-drill kits requiring no frame drilling for installation, and can be easily installed in around 1 hour.AirCell AirCell is an advanced, no-maintenance load support system that will reduce sag and improve ride in constantly loaded vehicles. AirCell's closed-cell urethane foam improves ride, compared to factory suspension, by providing a cushion of air to protect the vehicle from big bumps and vehicle sag. They are also more durable and offer a better ride than rubber suspension load support, eliminating the harsh jarring on rough roads. Economically priced and maintenance-free, AirCell suspension boosters provide a comfortable, safe ride loaded or unloaded. With easy-to-install bolt-on brackets, and no air lines or fittings, just install it and forget it; no inflation is required. In tests, AirCell performed better than stock bumpers in vertical acceleration and pitch, both positively affecting ride comfort. AirCell also performed better than stock in roll control, positively affecting the vehicle's handling. The competition's rubber systems performed worse than stock in both of these tests. Lastly, AirCell outperforms the competition in ease of installation; AirCell systems snap in with no need to lift the vehicle (in most applications), and rubber systems must be bolted on requiring the vehicle to be lifted, making it more difficult to install. Best Warranty in the Business Air Lift Company warrants that the AirCell system will be free from defects in workmanship or materials for the lifetime of the vehicle of original installation. This does not include installation or other service charges for replacement.Exclusive 60 Day Ride Satisfaction Guarantee Air Lift guarantees you'll be happy with the improvement in road comfort and load handling. If you're not satisfied, you may remove the product and return it to your dealer for a full refund of your purchase price within the first 60 days after your purchase.Air Suspension Solutions that Fit, Work and Last Air Lift Company has been developing air spring suspension products for almost 60 years. The versatility of Air Lift air springs was proven during the early years of stock car racing. Air Lift products were used by most of the stock car racing teams for twenty years and the sponsored cars were among the toughest competitors on the NASCAR Grand National Circuit. Today, Air Lift has won more SEMA (Specialty Equipment Market Association) awards for air spring development products than any other company. Air Lift products are sold throughout the world and can be engineered to fit almost any coil or leaf spring suspension. The extensive product line includes everything from air helper springs for cars, vans and trucks to full air suspension replacement and control systems for recreational vehicles, emergency vehicles, hot rods and lowered performance vehicles. Quality and Performance – the Air Lift Difference As of February 2007, Air Lift Company is proud to be ISO 9001:2000 certified. ISO 9001:2000 applies to organizations which follow rigorous quality standards, and are committed to continuous improvement. Air Lift Company is dedicated to making suspension products that fit, work, and last.