Vehicle Fitment

This kit fits:

Chevrolet

• 2001–2010 Silverado 2500HD
• 2001–2010 Silverado 3500
• 2007 Silverado 2500HD Classic

GMC

• 2001–2010 Sierra 2500HD
• 2001–2010 Sierra 3500
• 2007 Sierra 2500HD Classic
• 2007 Sierra 3500 Classic

Fits:

• Rear-Wheel Drive (RWD)
• Four-Wheel Drive (4WD)
• Single Rear Wheel (SRW)
• Dual Rear Wheel (DRW)

Not Compatible With

According to Air Lift, this kit does not fit:

• Cab & chassis models
• Quadrasteer-equipped trucks

Always verify your truck’s suspension configuration before purchasing.

What’s Included?

The LoadLifter 5000 kit includes:

• Two rear air springs
• Upper mounting brackets
• Lower mounting brackets
• Upper roll plates
• Lower roll plates
• Air tubing
• Inflation valves
• Installation hardware
• Detailed installation instructions

An onboard air compressor system is available separately for in-cab pressure adjustments.

5,000-Pound Load-Leveling Support

The LoadLifter 5000 provides up to 5,000 pounds of load-leveling support to assist the factory suspension.

Benefits include:

• Reduced rear-end squat
• Improved steering control
• Better braking balance
• More even tire loading
• Improved trailer stability

This support helps restore factory ride height under heavy loads while remaining within the truck’s original GVWR.

Adjustable Air Pressure (5–100 PSI)

The air springs can be adjusted between 5 PSI and 100 PSI depending on load.

Advantages include:

• Comfortable unloaded ride
• Extra support while towing
• Adjustable suspension tuning
• Better ride quality under varying loads

Simply increase pressure when hauling heavy cargo and reduce it when driving unloaded.

Eliminates Common Towing Problems

Air Lift designed the LoadLifter 5000 to address several issues associated with heavy towing.

Rear Suspension Sag

Maintains a level stance and improves weight distribution.

Bottoming Out

Helps prevent axle-to-frame contact over bumps.

Trailer Sway

Improves stability by supporting the rear suspension and maintaining proper ride height.

Body Roll

Increases effective spring rate under load to reduce excessive leaning during cornering.

Headlight Aim

A level truck helps maintain proper headlight alignment for improved nighttime visibility.

Porpoising

Reduces the fore-and-aft bouncing motion that can occur when towing large trailers.

Heavy-Duty Construction

Air Lift uses premium materials throughout the LoadLifter 5000 system.

2-Ply Reinforced Air Springs

The air springs feature reinforced rubber construction similar to heavy-duty tires for improved durability.

Zytel® Nylon End Caps

High-strength nylon composite end caps offer:

• Corrosion resistance
• Reduced weight
• High structural strength

Roll Plates

Upper and lower roll plates help:

• Protect the air springs
• Improve load distribution
• Increase overall load support

According to Air Lift, the roll plates can increase load capacity by up to 10% while reducing wear.

Fifth-Wheel Compatibility

The LoadLifter 5000 is compatible with most side-mount fifth-wheel hitch applications, making it a popular choice for RV owners and commercial towing.

Always verify hitch compatibility before installation.

Air Lift LoadLifter 5000 vs Factory Suspension

The system supplements the factory leaf springs rather than replacing them.

Who Should Buy This Kit?

The LoadLifter 5000 is ideal for:

• Fifth-wheel RV owners
• Gooseneck trailer owners
• Horse trailer towing
• Construction contractors
• Equipment haulers
• Commercial fleet vehicles
• Truck campers
• Heavy-duty work trucks

Pros

• Up to 5,000 lbs of load-leveling support
• Adjustable 5–100 PSI operation
• Compatible with SRW and DRW trucks
• Works with most side-mount fifth-wheel hitches
• Durable two-ply air springs
• Corrosion-resistant Zytel® end caps
• Limited lifetime warranty
• 60-day Ride Satisfaction Guarantee

Cons

• Does not increase towing capacity or GVWR
• Onboard compressor sold separately
• Not compatible with cab & chassis or Quadrasteer models

Final Verdict

The Air Lift LoadLifter 5000 (57275) is one of the best rear air helper spring kits available for 2001–2010 Chevrolet Silverado 2500HD/3500 and GMC Sierra 2500HD/3500 trucks. With 5,000 pounds of load-leveling support, adjustable air pressure, durable two-ply construction, and compatibility with most fifth-wheel hitch setups, it significantly improves towing stability and ride quality.

For truck owners who routinely tow heavy trailers or haul substantial payloads, the LoadLifter 5000 is a proven suspension upgrade that helps reduce sag, sway, bottoming out, and uneven handling while preserving factory ride comfort when unloaded.