Rough Country Rear Suspension Air Bag Kit, for 07-21 Tundra; 10024. Rough Country Suspension Systems. Introducing, Rough Country’s Rear Air Spring Kits. Rough Country’s Rear Air Spring Kits feature two RC branded high-quality double convoluted airbags complemented with DOT-approved airlines. Whether you plan on towing or hauling in the not-so-distant future Rough Country’s Air Spring kit is the must-have accessory to ensure that your trailer is level reducing the weight off of the tongue of your trailer. Each kit offers 1/4 push connector fittings and all of the bracketry needed to ensure installation is lightning fast and secure! Best of all, Rough Country’s Air Spring kit provides up to 5,000 lbs of load support to ensure that you experience less sway and bottoming out when braking and steering! Give yourself peace of mind on your next haul with Rough Country’s Air Spring Kit! Durable powder coated steel brackets. Push to connect air fittings. Internal Bump stop in Air Bag. Double convoluted Air Bag. Levels truck when towing for safer load carrying. Includes DOT approved air line. Does NOT increase towing capacity. Installation Time Estimated: 1-2 Hours. Messages are normally answered within 24-48 hours, not including weekends or holidays. Order Cancellation: Orders are processed within 10 minutes of placing your order. Items must be New, Unused, Not Installed, in the Original Packaging and able to be resold. Please message us to start a return. Quantities, Colors or Accessories may be different or not included exactly as pictured.