The original self-adjusting suspension stabilizing system, designed to level rear-end sag caused by heavy loads on rear leaf spring suspension – SuperSprings.


The world’s first and only airless air spring! SumoSprings do not leak air and do not require airlines or compressors. Increase your ride comfort, reduce sway, and level sag – SumoSprings.

Coil SumoSprings 

Made from SumoSprings’ micro-cellular urethane, designed to slide in between the turns of coil springs to enhance suspension, reduce sway, and level sag – Coil SumoSprings.


Heavy duty replacement coil springs, designed to remedy sagging and overworked original equipment front and rear coil springs – SuperCoils.

Trailer SumpSprings

Made from the same micro-cellular air springs as SumoSprings, mounted on trailer leaf spring assemblies, stabilize sway, absorb road shock and vibration, and improve driver control – Trailer SumoSprings.

SuperSway-Stops and SuperSilent-Stops replace underutilized and noisy overload spring contact pads. SuperStops reduce sway and dampen energy to reduce noise –SuperStops.

Learn more about SuperSprings products such as installation tools and mounting kits on the Products page. Not familiar with suspension enhancement products?

For more than 20 years, SuperSprings has designed, developed, patented, and introduced numerous innovative suspension solutions. Applications are available for commercial and recreational trucks, vans, buses, cars, sport utility vehicles, minivans, trailers, and RV’s.


Increase your ride comfort, level sag, reduce sway, protect your cargo, and save money with maintenance-free and American-made SuperSprings and SumoSprings!