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Your cart is empty.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.
Dee
Reviewed in the United States on March 2, 2025
The new updated bracket does not work! The spring is off set and the bar does not make contact with the center of the spring. I have to big paper weights setting in my garage
Customer
Reviewed in the United States on November 3, 2024
My truck use to drop down about 6 inches when I connected the travel trailer. With the sumo springs, it only drop about an inch. The truck suspension is a little firmer, makes it easier to steer with the weight of the travel trailer. Travel trailer is 29 feet long and weighs 6445 lbs.(ultra lite).
Loren E.
Reviewed in the United States on April 10, 2024
I was told they would do more than what they were supposed to. It wasn't the product, it is doing what it was supposed to do.
William West
Reviewed in the United States on June 17, 2023
So far, easy fix. See before and after photos. Improved about a 2+ inch sag. Driving performance is much improved as the capacity of the "springs" are progressive; adds more weight carrying capacity the more weight you put on it. Made in USA, lifetime warranty. Fairly easy to install and much cheaper solution to those trucks that are 4WD. I couldn't add leaf springs because of the off road characteristics and an air bag system is very expensive and wears out. Just removed the frame chassis bumper and replaced them with the new system. Love it. Anyone who knows me, know that compliments come hard but this product, so far, gets an A+. Good job guys.
Larry
Reviewed in the United States on June 17, 2023
Old used junk came in box very used
Matthew S.
Reviewed in the United States on August 9, 2020
I have a 2012 F250 FX4 6.7 diesel no rear sway bar or overload springs installed and it’s at factory ride height. I tow a ~12000 lb trailer regularly and that’s the only time I noticed the sumo springs installed. They behave like helper air bags, only with the ideal pressure all the time. My ride unloaded vs loaded with a trailer isn’t much different and my steering is more effective since the heavy tongue isn’t picking my front into the air anymore.I honestly went this route to reduce the chance of mechanical failure you could get with air bag leaks or road master active suspension rusting out. Once the sumo springs were in I don’t have to make adjustments loaded vs unloaded, it’s just foam.The hardest part of the install was removing the old bump stops, lifting the truck and wedging blocks between the axle and bump stops then letting the truck back down was the only way I could stop the bump stop from turning with the nut to remove it
dhkeever
Reviewed in the United States on August 26, 2018
The Sumo Springs were fairly easy to install and made a big difference in the bounce of the back of our F250 while towing a 10k lb, 32' Silverback. Highly recommend this product.
00Asian
Reviewed in the United States on November 8, 2018
My truck wieghts 9000lbs as you see in the pictures. The sumo springs raised the rear 1" and it no longer sits on the rear of the overloads. Definitely more stable but still rides nice on road, will take large pot holes and bumps well. I will repost after I put a heavy load in the bed and tow a 10,000lbs load. Pic of before left and after right
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