The Air Lift LoadLifter 5000 Pro Series features exclusive heavy-duty aluminum anodized end caps, unavailable on any other Air Lift product. With up to 5, 000 lbs. of load-leveling capacity and exclusive features, the Pro Series spring kit provides greater durability for hauling heavy loads.• Up to 5, 000 lbs. of leveling capacity*• Exclusive aluminum-anodized end caps and stainless steel end cap hardware• Air Springs are fully adjustable from 5-100 PSI for precise control• Levels your vehicle when towing or hauling for a safe, comfortable ride• Eliminates sag and bottoming out• Easy to install with included instructions• Underframe kit designed to work with most in-bed hitches* Do not exceed the vehicle's gross vehicle weight rating (GVWR).NOTE: Does not fit commercial cab and chassis or Dual Rear Wheel models. Fitment2023-2026 Ford F-250 and F-350 Super Duty Pickup, Single Rear Wheel, 4-Wheel Drive Fully adjustable from 5-100 PSI for precise control Levels your vehicle when towing or hauling for a safe, comfortable ride Eliminates sag & bottoming out | Air Lift LoadLifter 5000 Pro Series Air Spring Kit, 2023-2026 Ford F-250 and F-350 Super Duty Pickup, Single Rear Wheel