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Heavy gear like a plow or winch can make the front end sag and throw off steering. These Coil SumoSprings helper springs install between the coils of your front suspension to add support and stability when the load gets heavy. Each spring has an inner core of microcellular polyurethane foam that cushions the ride while progressively stiffening as weight increases. The result is a smoother, more controlled feel that keeps your front end level and steering steady under load.
A harsh ride can wear you down fast, especially when the suspension bottoms out over bumps. The microcellular polyurethane foam inside each SumoSpring soaks up shock and vibration before it reaches the cab. As pressure builds, the foam firms up to handle heavier loads without feeling stiff when empty. It’s a smart, self-adjusting design that helps reduce driver fatigue and keeps ride comfort consistent mile after mile.
Snow, salt, oil, and UV rays can break down ordinary rubber spacers over time. These helper springs are made from tough polyurethane that resists abrasion and damage from those harsh conditions. They’re designed to withstand extreme temperatures without cracking or losing shape, so you can count on dependable performance season after season with no maintenance required.
Adding front suspension support doesn’t have to be complicated. Each wedge-shaped spring inserts between the individual coils of your existing springs with no extra hardware or upkeep needed. Once in place, they stay put and go to work supporting your coil suspension so you can get back to towing, plowing, or hauling without any extra hassle.

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hello neighbors, it's Brad here at etrailer, and today we're taking a look at the Sumo Spring Front Custom Helper Springs for a Front Coiled Suspension. Now, this is gonna be available for a bunch of different vehicles, whether it be a truck, SUV, or van, like we have here today. Now, you're gonna want to make sure to use our fit guide on etrailer.com to make sure that you're getting the proper Helper Springs for your vehicle. Now, the way that these work is actually creating a nice little, progressive cushion barrier for those coils. So, instead of the spring just compressing down, it gives it a little bit more of a fight, but it's also nice and soft, that way, it's still giving you compression, so it's not gonna be a harsh ride. And in fact, it should settle it out quite a bit.
And if your front is loaded down this is a great way to kind of bump that back up, to get at riding level, and it's just gonna make driving a lot more comfortable, and a little bit more short footed. Some typical applications would be, a minivan that is loaded down with the family and maybe some accessories on the roof or in the back. Whatever it may be, if it's fully loaded, your suspension is having to work a little bit harder. And the great part about this is, is it pops in place, there's no maintenance required and it's gonna keep up with the heat. Any oil or chemicals that you might find on the road, it's not gonna break down.
So once it's in place, you're gonna get that added comfortable driving, whether you're loaded or not. Now, it's not gonna bump up your weight capacity per say, so, you're not gonna be able to hold more on your vehicle, but what it's gonna do is actually give your suspension the most bang for buck to fight against that load. So it's really gonna let it work a little bit easier as it kind of supports it. So, that's a great way to enhance your suspension without having to completely change your suspension. Now, obviously we have a minivan here today, but they're all gonna install about the same.
And this is really gonna be great for guys that have those front hitches with snow plows or just any front storage of the vehicle with weight up front. Even heavy brush guards can really weigh down the front and just take away a nice, smooth driving experience, and it's gonna be kind of a rougher ride just having that weight already compressing it. So, this just takes that constant pressure on those Springs and just kind of makes it a little bit more supple, and it can handle that weight quite a bit better. Now we're out on our test course and this is gonna give us a good baseline of how it is stock and that way you can really see the difference once they're actually installed. As a lot of suspension components are, you really can't tell a quantifiable difference as far as measuring it, but it really comes down to the way that it feels.
So, I'm gonna kind of get my first impressions here, and we'll see how it improves. So we're gonna start by hitting some bumps here, kinda simulate some rough road or just kinda uneven services back and forth here, kinda get the suspension to work. Then we're gonna come up to a slalom. So, we're gonna actually see that suspension as we go side to side and some of the sway that's involved with that. And that's kind of where these can come into play, is it's not necessarily gonna reduce the sway a ton but it's gonna give those Springs a chance to kinda fight back without just compressing down. And having that little bit of dampening there, should make it a lot more responsive, especially, when the van is loaded up, it's gonna make a world of difference. With our Helper Springs installed, we're gonna go back on that same test course and kind of run it through the same test, just to see the difference. So hitting the bumps first. Immediately, I can tell already that the suspension just seems a little bit heavier duty in a good way. It's just handling it kinda a little bit more graceful. It doesn't feel like the shock is really getting a huge workout. It feels tougher, absolutely out the gate. I'm not loaded up right now, so, it's really not gonna really shine until you have it loaded up, but immediately even without weight, it's already made a big difference. So, even in the slalom here, back and forth, it's making this minivan feel a lot sportier. So, I'm pretty impressed. For a really quick install, this is a great way to get a lot better handling and just overall better suspension feel, and be able to support heavier loads on your vehicle. Now, this is what it's gonna look like before you install it, and you can see it's got a slit here. And these grooves look almost identical, but we actually have one that's deeper. So, the deeper one is gonna sit on the bottom of the spring and you're gonna want this on the top. Now, installation is gonna be about the same for pretty much every vehicle. We're doing it on this van here, but really you're just gonna want to jack up the front suspension, and that way that suspension hangs down. So, make sure you have your emergency brake on. You might wanna chuck your rear wheels and then also jack it up from here and put a jack stand under there just to be safe. But once that tire stops dropping, you know that you've fully extended that spring out, it's gonna make it a lot easier to get this in. You'll see a lot of dust on these which is kind of normal for a car that's driven quite often. So, what I'm gonna do is just with a soapy water solution, just spray all of this down. And that's twofold, not only to make sure that it's a nice clean surface we're putting it on, but it's also gonna help kind of lubricate it to get it placed on for its installation. So, once we spray that down, just go through wipe down those coils and try to give it the best smooth surface to actually hop onto it. Now, once you have that surface clean, again, take that deeper groove, and that's gonna go on the bottom here. And we're looking to get it in the second or third kinda gap in between the coils. But really for first initial, whatever kind of works best. So, the fact that this is kind of open, that's gonna work well. We can always move this up. So, what I will do actually is start with one edge, kind of wrap it around here and we'll put our groove in. Now, at this point, it's gonna be kind of tight here, but I'm just gonna kind of really press this in to get that leading edge in. So, once that's in, what you can do is actually rotate this a little bit and then just kind of work your way. And you can see that soap water really helping to be able to move this. And now that I have it in place, I'm just gonna make sure that I have it set up exactly where I wanted on the Springs. So, I'm gonna rotate it right about here. Some of the kits actually come with zip ties. And you can see there's a hole here, and you would just simply run that zip tie through and then kind of zip it around the coil. And I guess the thought process would be to keep it to where it's not gonna move, but honestly, once this spring is compressed it's gonna have enough pressure. And seeing how much pressure it took to get in there, I don't think they're really necessary. But if your kit comes with them, you might wanna run those through, and that way you have a little bit more peace of mind knowing that they're not gonna rotate down. And that was a look at the Sumo Springs Helper Springs for Front Coiled Suspension..
Customer Satisfaction Score:
96% were satisfied with this product
4% of customers were not satisfied
Ratings & Reviews

Andy
9/10/2026
Great, 14 of the way thru our build


Steven G.
11/26/2024
Ive had these on my van for a year now, and they are working quite well. I find that the ride is very smooth, without any sway, under all conditions - including high wind. I think the effect is subtle, and the rear Sumo Springs probably have the larger effect. But the front ones add that extra level of performance improvement, and Im glad I have them.

Gwendolyn Y.
5/17/2025
Wow, that sounds like such a difference in so many ways, Connie. I bet being able to have a normal conversation as well as a smooth ride makes the journey between destinations so much more enjoyable. What kind of travel plans do you have for the summer?



Scott
2/12/2025
Took the van on a 4000 mile trip and all worked wonderfully especially on the highway in windy conditions.


Peter
4/6/2025
One year later we have nothing but praise for this. Greatly smooths the ride and provides stability during windy conditions. Van made it easily 16,000 miles across the U.S., up the Alaska Highway and Dalton Highway to the Artic Ocean. Highly recommend.

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Lazer S.
3/24/2026
Glad to hear they made that much of a difference! It's always kind of surprising how much so simple a thing can make such a difference! ^___^ Sounds like quite the road trip as well! Where all did you guys go?