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Heavy trailers or bed loads can push your rear suspension down and throw off how your truck handles. These SumoSprings Solo helper springs add up to 2,800 lbs of support at 50-percent compression to keep your ride level and stable. They help your factory suspension carry the extra weight so your steering, braking, and headlight aim stay consistent when you’re towing or hauling.
Every load feels different, so the springs adjust automatically. With lighter loads, they compress easily for soft engagement and a comfortable ride. As the weight increases, they get stiffer—compressing by as much as 80 percent—to provide strong support without bottoming out. This progressive action keeps you balanced and absorbs bumps so rough roads don’t beat you up.
When a curve or crosswind pushes your vehicle off balance, each spring works on its own to keep both sides planted. That independent movement cuts down on sway and body roll, making cornering smoother and helping you stay in control even with uneven or off-center loads.
Designed for long life and steady performance, these microcellular urethane springs hold up in temperatures from -25 F to 200 F and resist damage from oil, road salt, and UV rays. They compress vertically with minimal side expansion, so they fit safely in tight spaces without rubbing on nearby parts. There’s no air pressure to check or tubing to run—just maintenance-free performance that keeps working trip after trip.
The helper springs are custom fitted for clean installation—no drilling required. You get two jounce-style springs that mount directly to your rear suspension so you can upgrade your load support in an afternoon using standard tools.
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?
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.
Gwendolyn Y.
5/20/2026
Looks like you were about to head off somewhere fun, Chad!
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!
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.
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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Randy
11/14/2023
Working well. The truck rides better and hauls better since installing the SuperSprings.