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Heavy trailers, campers, or bed loads can make the rear sag and throw off steering and braking. These SumoSprings Solo helper springs add up to 1,500 lbs of support at 50-percent compression to keep things level and steady. The microcellular urethane springs take pressure off your factory suspension so your ride stays controlled and your headlights stay aimed right even with extra weight in back.
Rough roads and uneven cargo don’t have to make every trip a chore. These springs compress easily with light loads for soft engagement, then firm up as weight increases for solid support. That progressive load control keeps the ride comfortable when unloaded but gives serious backup when you’re towing or hauling heavy gear.
Each spring works on its own to handle off-center loads and reduce body roll through curves. When a gust of wind or a sharp turn tries to push your truck around, the independent action keeps both sides planted. It helps control sway so handling feels more predictable and the truck stays balanced under load.
Built from tough microcellular urethane, these springs hold up in temperatures from -25°F to 200°F and resist oils, road salts, and UV rays. They compress vertically instead of bulging out to the sides, so they won’t get damaged near tight mechanical parts. With no air lines or pressure to manage, they stay maintenance-free mile after mile.
Getting extra suspension support doesn’t have to be complicated. These helper springs are custom fit for your setup and install easily without drilling. Just bolt them in place using basic tools, and you’ve got dependable rear suspension help ready for hauling or towing right away.
Ratings & Reviews
Claire H.
9/1/2026
That is the beauty of SumoSprings! Super easy to install and once they're on you can forget they're there! Are you planning on towing something with your Jeep that you want extra support for?
Claire H.
9/2/2026
Heather A.
8/12/2026
Wow thank you for the glowing review Randall. It sounds like once you got them installed they are working out great. That sunset is gorgeous, where were you in this photo?
Gwendolyn Y.
5/20/2026
Looks like you were about to head off somewhere fun, Chad!
Gwendolyn Y.
4/23/2026
Thanks for the awesome feedback, Jeff! Love hearing that the install was a breeze and that you noticed such a big difference in handling, that’s exactly what you want after the upgrade. Really appreciate you sharing the photos too, it’s always fun to see the comparison.
Gwendolyn Y.
1/8/2026
Glad the Sumos are helping make your loads easier to tow!
Richard
2/12/2026
No issues. Towed a 27 Airstream around 4k miles & its all good.
Lazer S.
2/12/2026
Mike
7/31/2025
The springs are working exactly as expect. I have need up to the mountains numerous times and to Monerary to the Sea Otter bike fest. They have reduced the body roll and helped keep the truck stable on the mountain roads or when loaded down for camping. Im very pleased I added these Sumo Springs to my Tacoma.
Jon G.
7/31/2025
Lazer S.
9/16/2025
Glad to hear they are helping, Cory! If you are feeling them going over speed bumps, I think taking one of the spacers out is a good idea. Especially if that is happening when you are unloaded. Speaking of which, what are you towing?
Lazer S.
9/23/2025
Albert
7/16/2025
Still working like new. So much better than the factory bump stop.
Christopher H.
8/4/2026
Happy to hear the # SSR-118-54 was a simple install and is working well for you. This is a great system!
Andrew N.
10/21/2026
Hey John, thanks so much for the detailed response and photos. That really helps other folks on the page. I'm glad install went well and you're liking them! I have these sumosprings on my Nissan Titan and it's a huge upgrade for towing!
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Lazer S.
5/13/2026
Glad to hear the install wasn't too bad, Michael! Definitely let us know how the ride is once you take it out for a drive! What are you using your Van for? The tires look pretty beefy.