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1,500-lb Capacity. Upgrade your vehicle's rear suspension with these maintenance-free helper springs. Sturdy microcellular urethane springs cushion bumps and help support a heavy load to level your ride and minimize sway. No-drill installation.
Features:
Specs:
Towing or hauling a heavy load can cause rear sag as your factory suspension compresses under the weight of the load. This means that the rear axle is trying to support not only the extra load but also the weight of your vehicle. And because there is less weight on your front axle, your front tires make less contact with the road, which causes problems with traction, steering, and braking. SumoSprings upgrade your vehicle's factory suspension to level your vehicle, improve driving performance, and keep your ride comfortable.
SumoSprings provide progressive load control - the more you load them, the stiffer they become. With a lighter load, the springs will compress easily for soft engagement and a less bumpy ride. The closed-cell urethane material allows for smooth contact between the springs and your vehicle. And the springs act like a shock absorber to dampen road vibration.
The springs can also compress by as much as 80 percent to support a heavy rear load and to help your factory suspension bear up under the load. This evens out the weight, which levels your vehicle and ensures that your front tires are making better contact with the road. A level ride means that you have improved driving control, ensures safe headlight aim, and helps to minimize sway. The springs also support your factory suspension, which helps prevent sagging and reduces bottoming out.
The springs work independently from one another to support each side of your vehicle. This action helps to reduce body roll when you make a sharp turn. This also helps compensate for an off-center load.
These microcellular urethane springs are tough. They resist abrasion, oil, salt, and UV rays that can more quickly wear out other springs, and they perform well in temperatures ranging from -25 F to 200 F (-33 C to 93 C).
SumoSprings compress vertically with minimum expansion to the sides, so they won't be damaged by nearby mechanical parts and they fit safely into tighter spots. And unlike air springs, SumoSprings require no maintenance or adjustment.
The helper springs are custom designed to fit your vehicle, and they install easily - no drilling required.
Keeps my truck from sagging and stabilizes my ride in a very cost effective way. Super easy to install as well
Sumo springs are good and better than helper springs. I made a mistake in ordering the type of load rating I purchased medium springs ride is stiff without load, I should’ve purchased the light springs. Overall these are excellent.

Dane
2/24/2023
Sorry to say but I took it off, the ride without a load is very harsh, I should’ve purchased the softer springs.
I am very happy with these overall. They were easy to install and work as advertised. Much bigger and more robust than the factory bumpstops. I ordered them for my '21 Ford Ranger to alleviate the sag from towing my camper. They work well, but if you put on enough weight that they contact the axle constantly, it makes for a jouncy ride. I also added a set of helper springs and together they work very well.
Works great. Easy to install. Another great product from etrailer!
Item as described and fast shipping! Very happy.
They seem to do just what they were intended to do.
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Justin
4/12/2025
Still very happy with the way the product works and has held up