
To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
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When you’re towing a trailer or hauling a heavy load, rear-end sag can throw off your control and headlight aim. These SumoSprings helper springs add up to 1,800 lbs of support at 50-percent compression to help keep your ride level and steady. They enhance your factory suspension, improving stability and braking feel while reducing squat and sway when the weight piles on.
Uneven pavement or rough trails can make a truck bounce and jolt when loaded. The progressive design of these springs changes resistance based on weight—light loads get a soft cushion, while heavy cargo gets firm support. The result is a balanced ride that soaks up bumps without bottoming out or feeling harsh when empty.
Crosswinds, uneven loads, or sharp turns can make the rear of your vehicle feel loose. Each SumoSpring works independently to balance side-to-side motion and minimize sway. Whether you’re carrying tools on one side or pulling onto an uneven road, the rear stays planted and predictable through corners and gusts.
Forget about air lines, fittings, or pressure checks. These microcellular urethane springs are completely maintenance-free and resist oil, road salt, and UV damage for long-term reliability. It’s a “set it and forget it” setup that installs easily without drilling and keeps doing its job season after season.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hi, everybody. Andy here with etrailer.com. Let's take a real quick look at the SumoSprings rear axle custom helper springs. Now this kit is designed to fit your 2024 and newer Toyota Land Cruiser and Tacoma. Then your 2022 and newer Lexus LX 600. And then finally your 2023 and newer Toyota Sequoia.
On custom fit parts such as these helper springs, I do recommend taking advantage of our vehicle fit guide here at etrailer.com. Simply input the year, make, and model of your vehicle and our fit guide will confirm if this set will work for you or if we have something comparable that will work for you. So whether you're hauling weekend gear or towing a small trailer, these springs are going to adapt to the load. Light cargo is going to compress them slightly for a soft ride while heavier loads are gonna activate more resistance, keeping your truck level and your drive predictable. Now these do have a weight capacity at 50% compression of 1,800 pounds, but do be aware of the fact that these springs do not actually increase your vehicle's weight carrying capacity.
And these are designed to handle the harsh environments. The closed cell urethane is going to resist road salt, oil and UV damage. And then with no air lines or fittings to worry about, this is basically gonna be a set it and forget it solution built for year-round reliability. So that's what's great about SumoSprings. So if you hit a pothole or a rough stretch of road, these springs are gonna act like a cushion between your frame and axle, soaking up the impact to reduce jarring and minimize bounce.
It's, relatively speaking, a small upgrade, but you know it's gonna make a huge difference in comfort. So if you're carrying a tool chest or cargo that's gonna sit off to one side, each spring is going to work on its own to manage that side-to-side movement, it's gonna help reduce body roll during turns, giving you more control on the road. So you are gonna get these custom fit brackets that I have loosely attached to the springs, and then the hardware to get this installed onto your vehicle with some Loctite. And then instructions to guide you through the installation process. If you do pick this kit up, we would love to hear back from you regarding your experience with getting these installed and using them.
So you can share your experiences with us by dropping a comment or leaving a review on this product page. And if you have any other additional questions, don't hesitate to reach back out to us via phone, email, or chat. We do wanna make sure that you get exactly what you want and need. Well, I think that's gonna wrap up our quick look today. I do hope that it was helpful for you. Again, my name is Andy. Thank you for joining me.
Customer Satisfaction Score:
91% were satisfied with this product
9% of customers were not satisfied
Ratings & Reviews

Brooke M.
6/18/2025
Definitely less moving parts to worry about than airbags :) The install looks great! Are you hitched up in the photo to test out the springs or were you actually on your way to the water?

Victoria H.
4/8/2025
Thanks for your feedback Chris, this is valuable insight for future shoppers! Good to hear they're getting the job done as like you wanted. It's always nice when you don't have to spend the first few minutes at your campsite, picking up everything off the floor of your camper. Any upcoming adventures planned?
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Donald
10/8/2026
Cant believe its been a year since I installed the SumoSprings. Every time I go around a corner I so appreciate the excellent handling I now have. The Sumos have earned their 5th STAR!