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Heavy trailers, campers, and bed loads can make your rear suspension sag. These SumoSprings Solo helper springs add up to 1,500 lbs of support at 50-percent compression to help your rear suspension stay level under load. They work with your factory suspension to keep steering and braking steady while reducing bottoming out and keeping your headlights aimed correctly.
Bumpy roads feel smoother with the progressive load control built into these urethane springs. With lighter loads, they compress easily for soft contact and a comfortable ride. As the weight increases, they stiffen up—compressing by as much as 80 percent—to keep the rear end supported and balanced. That means you get a smoother ride when empty and solid control when loaded.
Each spring works on its own to handle uneven loads or side-to-side forces. When a curve or crosswind tries to push you around, the springs act independently to reduce body roll and sway so your vehicle feels planted through corners or when pulling into uneven ground.
Made from durable microcellular urethane, these springs resist oils, road salts, and UV rays while performing from -25 F to 200 F. They compress vertically with minimal side expansion to protect nearby components and fit safely in tight spaces. With no tubing or air pressure to maintain, they deliver reliable support without extra upkeep.
These helper springs are custom fit for straightforward installation that doesn’t require drilling. Just bolt them into place using basic tools and you’re ready for a more stable, level ride whenever you haul or tow heavy loads.
Customer Satisfaction Score:
95% were satisfied with this product
5% of customers were not satisfied
Ratings & Reviews
Tony
4/9/2024
Still up to my expectations. Ride and handling not affected while towing travel trailer
Bud M.
5/9/2024
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.
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!
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Condition: Like New
Notes: May have damaged packaging or minor cosmetic blemishes.
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Gwendolyn Y.
5/20/2026
Looks like you were about to head off somewhere fun, Chad!