Rear Driver or Passenger Side Heavy Duty Air Spring (A-2647) by Arnott®. Quantity: 1 per Pack. This is air spring with all new components designed to match the fine tolerances of original equipment. Top-notch, durable rubber bellows and other components are sourced by name brand companies that vehicle manufacturers used originally. Now you’ll be able to match original equipment fit and performance at a fraction of the inflated prices dealers charge for replacement air springs.