Description
SumoSprings® are a patented suspension product designed to enhance load carrying ability, stabilize sway, and improve overall driver control and ride comfort. They are maintenance free, do not leak air, and do not require airlines or compressors. SumoSprings® are manufactured in a variety of heights, diameters and densities to support multiple front and rear applications. They are manufactured from proprietary closed micro-cellular urethane providing a smooth and progressive spring rate with superior damping properties. Every SumoSpring is handmade with care, making each one unique with its own natural characteristics, such as slight color variations and surface bubbles—proof of the craftsmanship that goes into every piece.



Perry Small –
Installed This kit on my F250 Super Duty before my last trip towing a 35ft 5Th wheel trailer. Nice level smooth ride. The spring compressed about halfway and still had a great ride. I feel a lot safer towing with this kit. Very happy! I did not want to have air bags and all the hard ware and air. With SumoSpring I never have to think about it again. No air needed, no worries about air bag failure and no worry about having air available.