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.


Ralph Frias –
A little tricky with the install. Rear brake line RR in conflict with hook bracket. RL brake line passes over studs and nuts, friction on brake line a concern. Extremely happy with product. Used with cab over camper. Camper remodel at Grasslands, BLM areas, and forest roads. 4WD accessible public lands. Sumos made a big difference on washboard and rough roads, road haves and reasonable sway situations. I called and spoke to a friendly and knowledgeable salesman and followed his recommendations. I’m very glad I did.
Jeff Wilson –
Received springs pretty quick. Mounting went ok except emergency brake cable on right side was fastened in the way to install j-hook
John Malecki –
Quick delivery. Easy instal. Noticeable improved ride.
Michael Mertz –
Purchased the SSR-203-40-2 during your sale back in November and just installed them today on my Silverado 3500 dually. I can’t believe I waited so long. Thought we didn’t really need them until we bought our 5th wheel RV but I was wrong. What a difference in the smoothness of the ride. This product should be standard form the factory!! I can’t think of any downside to have these on every HD truck!
Can’t wait for your next sale so I can buy 2 pair for the 5th wheel trailer. If you ever run into anyone who is on the fence on buying these let me know. I would be more than happy to set them straight! Great product.
matthew wozniak –
So far so good – product has been on for four days and k my towed fifth wheel once- impressive
Elvis Methoxa –
Superb product!
Rick Houser –
Truck rides a little stiffer when unloaded, but when loaded or towing my enclosed trailer and mainly my 5th wheel, we notice a major difference. We will be ordering a set for our 5th soon.