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When you’re towing a trailer or hauling gear that makes the rear end sag, these helper springs step in to keep things level. The SumoSprings Solo Custom Helper Springs add up to 1,000 lbs of support at 50-percent compression to help your factory suspension maintain its ride height and stability. By keeping the truck level, you get steadier steering, proper headlight aim, and more confident braking even when the bed or hitch is loaded down.
Rough roads and uneven loads don’t have to beat up your ride. These microcellular urethane springs cushion bumps and shocks with a progressive load control design that adjusts as weight changes. They compress easily with light loads for a softer feel and can compress by as much as 80 percent under heavy loads for added support. The result is smoother handling when you’re empty and solid stability when the weight piles on.
When crosswinds or curves throw the vehicle off balance, the springs work independently to keep each side steady. This helps reduce body roll and sway so the vehicle feels more planted through turns or when towing on uneven roads. Uneven loads are no problem either—each spring automatically compensates to keep your ride level.
These microcellular urethane springs are made to handle real-world conditions without fuss. They resist damage from oils, road salts, and UV rays, and they work in temperatures from -25 F to 200 F. With minimal lateral expansion, they compress straight up and down so they won’t rub or snag nearby parts. There’s no air pressure to monitor or tubing to run—just a simple, no-drill installation that adds dependable support without ongoing maintenance.
Customer Satisfaction Score:
97% were satisfied with this product
3% of customers were not satisfied
Ratings & Reviews
Michael
7/20/2021
They work as promised. They’ve solve issues with towing the trailer.
Dan
6/14/2022
Still very satisfied with the product.
Jason
7/29/2024
I still love this product. I highly recommend it. And I would definitely buy it again.
Mark H.
6/11/2023
After a year and 3,000 miles pulling my toy hauler, Im very happy with the performance and ride.
Mike L.
7/12/2023
Robin
7/28/2023
performs 100 as described
John M.
6/25/2018
Working Great
Ben
8/24/2022
Still happy with them. Done plenty of towing long and short distances and i have no complaints.
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Gwendolyn Y.
4/15/2025
Sounds like the perfect set up! Are you loading up any fun gear in the trailer?