To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.
Error submitting comment. Please try again momentarily.
A loaded bed or trailer can cause the rear to squat and throw off your balance. These SumoSprings Solo helper springs add up to 1,000 lbs of support at 50-percent compression, helping your suspension stay level when hauling or towing. The progressive microcellular urethane compresses easily at first for a smooth ride and stiffens as the load increases to keep you steady under heavier weight. Steering, braking, and headlight aim stay consistent, even with a full load.
Rough roads and trailer bounce can wear on both you and your suspension. The closed-cell urethane construction cushions impacts like a built-in shock absorber, dampening road vibration and softening harsh hits. With lighter loads the springs engage softly for comfort, while heavier loads bring firmer compression—up to 80 percent—to maintain stability without bottoming out.

When a curve or gust pushes you around, each SumoSpring acts on its own side of the axle to keep your ride flat. This independent action helps control body roll in sharp turns and keeps off-center loads from tipping your balance. The result is a more planted feel whether you’re cornering on pavement or turning into a driveway with uneven ground.
You won’t have to mess with air lines or pressure gauges. These SumoSprings mount in place of the factory bump stops using included brackets—no drilling or extra hardware needed. They compress vertically with minimal side expansion, so they fit cleanly in tight spaces and aren’t easily damaged by nearby parts. Built from durable urethane that resists oil, salt, and UV damage, they deliver long-term support without leaks or upkeep.
Customer Satisfaction Score:
97% were satisfied with this product
3% of customers were not satisfied
Ratings & Reviews

Dan
8/3/2024
Working as expected and with Sumos there is NO MAINTENANCE or adjustments. Just drive and tow.

John J.
8/30/2022
They do their job and loving it. Im able to put max load 1650 lbs on my Tacoma and there is very little sag. Only a small complaint that has to do with the ride when unloaded. I had lay with the adjustable stock absorberá for a while finally findings a suitable ride. With the SUMOs having no clearence between the frame and the springs when installed, they cause a bumpy ride unless the shocks react very fast to attenuate it.

Gwendolyn Y.
1/2/2025
Hey Joel. I did some digging into what works for your Tacoma and it doesn't look like we carry anything that is a traditional bump stop. Everything will have similar brackets to this kit.

Bruce
7/30/2024
I bought two pair of SumoSprings on two different Trunda trucks. The SumoSpring can keep a trucks weight and level from a trailerRV.

Randy M.
3/12/2018
Still goin strong. I’ve had numerous campers even a Tundra owner inquire about what I’ve done to level my truck for the load. It totally out does more springs! When and if they fatigue, I’ll buy em again.

Max
5/16/2024
51524 The blue sumos have been working great . Yet like any suspension on a vehicle over time I’ve noticed the gap between the sumos and the frame have moved closer. That being said whenever the vehicle has full passenger weight or cargo it’s a fantastic ride. Without any load you will tend to feel the slight stiffness . The way I corrected that issue is by reducing the size of my Blue sumo by removing about an inch of the product . Will work the same and still be a great investment on prolonging your suspension but will definitely void warranty. I do think they sell a small size but you won’t realize this until you have installed your set . Still would highly recommend .

Preston
8/23/2023
Lean still solved. Help add the trailer hau. USE in conjunction with wd hitch its definitely worked

Joe
8/6/2020
Great product, worked as expected.

Chip
2/29/2016
And how did the SomoSprings work out on your Tacoma?

Randy B.
5/14/2019
Still working great and as expected!

Gene
11/7/2022
They are working out great still after well over a year now. Love how I can carry heavy to extremely heavy loads without the truck sagging down and still rides like a Cadillac
Do you have a question about this Vehicle Suspension?
Info for this part was:
At etrailer we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.


























Dan
8/4/2023
Great