When a vehicle tows a trailer or carries a load that is beyond the capabilities of the original equipment rear springs, the rear end can sag, compromising ride height. This can result in poor handling and ride, and because the weight distribution is now biased to the rear, the headlights may point skyward instead of illuminating the road ahead, and traction for steering and braking will be reduced at the front wheels.

Featured Products



Featured Brands

If the vehicle is used regularly for such tasks, cargo coils or heavy-duty leaf springs can be installed. However, when the vehicle isn’t towing or is driven unladen, the ride quality with these springs may be too harsh. If you only occasionally tow or carry heavy loads, helper springs are the answer. They work with your existing coil or leaf springs, to level the vehicle and provide a smooth ride and optimal handling when hauling cargo or towing.

We offer both air springs and secondary leaf springs as helper springs. Secondary leaf springs are available in a wide range of load support ratings, from 500 to 3500 lbs. These progressive rate springs are manufactured from heat treated spring steel for maximum strength, and can be adjusted independently to accommodate uneven side-to-side loads. When weight at the rear of the vehicle increases, load assistance takes place gradually as the main springs compress. During normal unloaded driving, they have no effect on the main springs, and don’t cause any ride harshness.

Our helper air springs supplement your factory springs and install on top of the leaf springs or axle, or fit inside the coil springs. They come in vehicle specific kits that can provide from 1000 to over 5000 lbs. of load support. Air springs can be adjusted to the load within the range of their rated capacity, so you can level your vehicle for optimal handling, braking and control, and get a comfortable ride. The air springs are inflated via air lines and Schrader valves, and can be set up to fill in pairs or individually. However, to get the most benefit from your air springs, install an on-board air compressor system.

We have complete systems that include the compressor, air springs, and everything needed for installation, as well as compressor systems that can be used with any brand air springs. Instead of having to find a source of air when you want to pump up your air springs, with an on-board compressor system you can adjust air pressure with the touch of a button. The ultimate compressor setup is our automatic leveling control system which includes sensors that signal the compressor to inflate the air springs when a change in ride height is detected, so you get a smooth, level ride automatically.

Related Categories

Guides & Articles

  • Performance Transmission Parts
    Suspension Enhancements Will Raise The Rear Of Your Tow Vehicle
    If you are using your "daily driver" car or truck for occasional towing duty, you are looking for that ideal sweet spot where the weekday commute is comfortable and quiet, and the weekend trailering feels solid and secure. In other words, you don't want to vehicle to feel too "stiff" during the week, nor do you want it to ride "soft" when pulling a trailer.

Helper Springs Reviews

Average rating:  4.5  4.6 - 37 reviews
4.3 of 5
Good Suspension
This would have been great but the bolts provided were too short so I needed to buy new ones. This provides great overload protection
JPosted by John (Rose Hill, VA) /
2000 Mazda MPV
Was this review helpful for you? Yes
View More
Related Helper Springs Pages
SECURE SHOPPING

All manufacturer names, symbols, and descriptions, used in our images and text are used solely for identification purposes only.
It is neither inferred nor implied that any item sold by CARiD.com, is a product authorized by or in any way connected with any vehicle manufacturers displayed on this page.