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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.
Chris Kobitz
2025-09-03 18:38:08
Easy installation and seemed to perform well. I didn’t have much time driving the vehicle without them so not much to compare to. Feels great with them though and I purchased based on reviews and recommendations for my RV.
dabx1/2
2025-08-26 10:46:37
I bought front and rear sets. The front fit perfectly and worked very well. The rears are slightly ahead of the axle. I am not sure if they are doing the job as well as if they were directly over the axle. The manufacturer said that a few of the e350s were like this and didn't offer me any solutions.
Joe
2025-08-15 17:01:15
Have a class C motorhome and we were having a problem with sway. When being passed by a semi it would push you had all over your lane. After I installed front and rear sumo springs it’s like having a brand new vehicle. Sorry I waited so long to find out about this product.
Pete1122
2025-07-25 09:40:26
These took less than 30 min to install and work great, fast shipping!
Elliemay
2025-07-09 11:11:24
This was a game changer. Made a world of difference in handling of our class C would recommend it
WallterBazan
2025-07-04 16:56:06
good driving on ford e350
Joshua Valkenaar
2025-06-13 15:01:02
Built a camper van out of a 15 passenger E-350. The added weight had the van sagging and leaning in corners. A little scary. With the yellow sumos the van feels almost sporty in the twists.
Chris Kobitz
2025-06-12 10:27:02
Easy installation and seemed to perform well. I didn’t have much time driving the vehicle without them so not much to compare to. Feels great with them though and I purchased based on reviews and recommendations for my RV.
dabx1/2
2025-06-10 11:00:22
I bought front and rear sets. The front fit perfectly and worked very well. The rears are slightly ahead of the axle. I am not sure if they are doing the job as well as if they were directly over the axle. The manufacturer said that a few of the e350s were like this and didn't offer me any solutions.
Joe
2025-05-31 13:17:10
Have a class C motorhome and we were having a problem with sway. When being passed by a semi it would push you had all over your lane. After I installed front and rear sumo springs it’s like having a brand new vehicle. Sorry I waited so long to find out about this product.
Pete1122
2025-02-24 16:31:58
These took less than 30 min to install and work great, fast shipping!
Elliemay
2025-01-23 18:28:40
This was a game changer. Made a world of difference in handling of our class C would recommend it
WallterBazan
2025-01-22 14:01:43
good driving on ford e350
Joshua Valkenaar
2024-12-22 16:42:36
Built a camper van out of a 15 passenger E-350. The added weight had the van sagging and leaning in corners. A little scary. With the yellow sumos the van feels almost sporty in the twists.
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