Firestone Suspension Self-Leveling Unit

Firestone Suspension Self-Leveling Units: Precision Load Control for Trucks & SUVs

When a heavy payload pushes your rear end down and throws your headlights skyward, a suspension self-leveling unit is the fix—and few names carry more authority in this space than Firestone Industrial Products. Firestone patented the first pneumatic air spring in 1938 and has continued developing air suspension technology for more than 80 years across passenger vehicles, heavy-duty trucks, buses, trailers, and industrial equipment. That depth of engineering heritage translates directly into the self-leveling kits available today.

How Firestone Self-Leveling Units Work

Firestone Ride-Rite air helper springs are heavy-duty, convoluted air springs that mount between the suspension and frame of your vehicle, designed to improve ride and handling, increase traction, and reduce suspension fatigue. By adding an adjustable air cushion alongside—or inside—your factory springs, these units create a variable spring rate that responds dynamically to whatever you're hauling or towing.

They help level the vehicle to support steering and braking responsiveness, reduce tire wear, and level headlight beams. Beyond comfort, Ride-Rite air springs stop leaf springs from permanent sagging under constant load and reduce your likelihood of bottoming out by softening frame-axle interaction.

Firestone's Self-Leveling Product Lines

Firestone offers several distinct lines to match different vehicle types and load demands:

• Ride-Rite: Firestone Airide Ride-Rite air springs are designed to support the existing vehicle suspension while maximizing safe load capacity and enabling more effective braking and handling—even under considerate weight and adverse road conditions. Ride-Rites are equipped with individual inflation valves, so you can level your vehicle front-to-rear or side-to-side when carrying off-center loads, and can boost load-carrying capacity from 3,200 to 5,000 lbs. per set.
• Coil-Rite: Firestone Airide Coil-Rite air springs are designed to fit inside existing coil springs to create a variable spring rate, helping level your vehicle and assist with more effective braking and handling—even under considerate weight and adverse road conditions. The Coil-Rite Air Bag Helper Springs are offered for most light trucks, SUVs, and RVs with up to 2,000 lbs capacity and are available for both front and rear applications.
• Red Label Extreme Duty: Firestone Airide RED Label air springs are designed with commercial grade materials to support the existing vehicle suspension while maximizing safe load capacity and enabling more effective braking and handling—even under considerate weight and adverse road conditions. The Red Label Extreme Duty Air Springs are available for most 3/4 and 1-ton applications and can handle up to 7,500 lbs of towing capacity with up to 150 PSI Max Air Pressure.

Air Command Self-Leveling Control Systems

What truly sets Firestone apart in the self-leveling segment is its Air Command control ecosystem. Firestone Air Command kits provide an instant air source for air suspension products, letting you adjust the ride for various load and road conditions with a flip of a switch, a click on a remote, a tap on your phone, or via self-leveling. The self-leveling option controls and levels itself based on height control valves, removing any need for manual adjustment when loads shift. Individual air spring control via self-leveling allows you to maximize towing or hauling with even or uneven loads in the bed.

Installation & Compatibility

Most Ride-Rite kits are no-drill, and most kits install in 1–2 hours with everything included for quick, easy installation. Kits are available to fit most light trucks, chassis cabs, motorhomes, RVs, SUVs, cars, and vans. Firestone air helper springs use adjustable air pressure to support changing loads; drivers can increase pressure when towing or hauling and reduce pressure during unloaded driving for more factory-like ride characteristics.

Whether you're managing weekend hauls in a half-ton pickup or daily towing with a heavy-duty work truck, Firestone's lineup of suspension self-leveling units offers a proven solution backed by decades of pneumatic engineering. Browse the full Firestone brand catalog to explore compatible air spring kits, compressor systems, and accessories for your specific vehicle.