How do I adjust the air pressure in the LoadLifter 5000 springs?

The LoadLifter 5000 springs are adjustable from 5 to 100 PSI. You can add or release air using the included fittings, typically connected to separate air lines run to the rear of the vehicle.

What is the Gross Vehicle Weight Rating (GVWR) support for this kit?

The LoadLifter 5000 kits can support up to 5,000 pounds of leveling capacity, working up to your vehicle's manufacturer recommended Gross Vehicle Weight Rating.

Does this kit come with everything needed for installation?

The kit includes the air springs and necessary components for installation between your truck's leaf springs and frame. Refer to the manufacturer's instructions for a complete list of included hardware and any additional tools or parts you might need.

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Specifications

Brand: Air Lift
Part #: 57345
UPC: 729199573453

Air Lift Loadlifter 5000 Rear Air Spring Kit for 94-18 Ford F-450 Super Duty

Name: Air Lift Loadlifter 5000 Rear Air Spring Kit for 94-18 Ford F-450 Super Duty
Brand: Air Lift
SKU: air-lift-air-lift-loadlifter-5000-rear-air-spring-kit-for-94-18-ford-f-450-super-t14-4399181
Price: 502.99 USD
Availability: BackOrder

$502.99

On Backorder — Expected to ship by May 7, 2026

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Level heavy loads up to 5,000 lbs with this air spring kit. Easy to install between your springs and frame.

Key Features

Levels loads up to 5,000 pounds — supports heavy towing and hauling.
Adjustable from 5 to 100 PSI — customize your ride based on load.
Eliminates sag, sway, and bottoming out — improves stability.
Installs between leaf springs and frame — works with existing suspension.
Rugged, durable components — built for long service life.

This kit is designed for 1994-2018 Ford F-450 Super Duty models.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

Air Lift adjustable air helper springs level your load, and give your truck, van, or SUV a safer, more comfortable ride. Air springs are easy to install between your existing springs and the vehicle frame. Just add air when towing or hauling a heavy load, and reduce air pressure when unloaded, they are fully adjustable for a great ride. Air Lift air springs eliminate sag, sway, and bottoming out. They are made with rugged, durable components for long, reliable service. LoadLifter 5000 kits are Air Lift's heaviest-rated kits for hauling or towing heavy loads. They have up to 5,000 pounds of leveling capacity, right up to the manufacturer's recommended Gross Vehicle Weight Rating, and are air adjustable from 5 to 100 PSI. LoadLifter 5000 kits fit such popular vehicles as ton and one-ton pickup trucks, many Class A, B & C motor homes, and commercial trucks and other severe uses. They also come standard with a limited lifetime warranty and an exclusive 60 day ride satisfaction guarantee.