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1,800-lb Capacity. Upgrade your Jeep Gladiator'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.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hi, I'm Matt with etrailer. Today we're gonna be talking about our SumoSprings on our Rear Suspension on our 2023 Jeep Gladiator. So the SumoSprings gonna be great because, compared to our stock ones, it's gonna be almost twice as long. So it's gonna make contact with your axle a lot sooner than what's gonna come stock. And that's gonna be great for if you're hauling anything, you have anything in the back, maybe not a lot, but a decent amount. This is gonna make contact first, and for that first 20% it's gonna be a very nice cushion, very light duty.
But then after that it's really gonna put a lot more pressure and be a lot more sturdier. And now with them installed, we can take it out on the road, see how it feels. We're really watching for how it's gonna compress down and make contact, versus just the standard ones. And we're trying to see how the turns feel, seeing if there's any reduced body roll. So when we compared these, we did our SumoSprings on one side and our stock one on the other side, just to see how they held up to one another.
And the SumoSprings really helped out a lot. As you can see on the bump course, or the speed bump course, our stock ones aren't even making contact, as compared to our SumoSprings, which is staying within that 20% range. Which is just great because it's not too jostling, it's just giving us a a little bit more assistance, as compared if you had another suspension enhancement back there. If it was getting in that 20% range, it would still be pretty jostling. But then when we move over to the serpentine area, you can really see where it's kind of helping prevent any of that body roll compared to what comes stock, finding it helping at all.
And then when we go off-roading just a little bit, you can see maybe one or two times where the stock one is making contact, but it's not helping a whole lot. Now our SumoSprings are really putting in that work. It's going a little bit past that 20% range now and really giving us that assistance that we need. Now with both of our SumoSprings, they're gonna have some pros and cons. With the blue one, it's gonna be great for maybe your everyday use, light duty off-roading, something that's gonna be comfortable to drive on.
Because you're gonna have that first 20% when you do make contact, it's gonna be nice and soft, very cushiony. Then after that, it's gonna apply more resistance. And now, if you're using the black one, it's gonna have a higher weight capacity. This one's going to be 1800 pounds, as opposed to your 1400 pounds with the blue one. And this one, after when it reaches at 20%, then after that it's gonna apply more resistance. And it's gonna give you more of a sturdy drive. Now it's not gonna be as comfortable, but if you have this constantly loaded up in the back, you're gonna want that extra support. Now when we're taking a closer look at the design of it too, what's really nice is this rib design. And I like about that is when it compresses, it's not gonna expand horizontally, it's gonna stay very vertical, so you don't have to worry about it expanding and making contact with your springs on the side. And with that microcellular urethane, if it makes contact with any of those oils, salts, or even UV rays, it's gonna be able to stand up to the test of time. Now as far as the installation goes, it's very straightforward, pretty easy as compared to some other suspension enhancements. All you have to do is line up this top ridge up here and just stick it up into this cup. Now between the two, the black one might be a little bit more difficult to install, just because it doesn't have that rounded edge at the top and it is a little bit thicker. But if you need a hand with it, just stay tuned and we'll show you how to do it. Now start off the install, we're gonna jack up our Jeep and put our jack stands on either side. And now I'm just gonna take off the tire so we can get a better look at it. You don't have to if you're installing it on your own, but let's just get a better look at it. And like I said before, we just took the back tire off to give you a better view of this. Now we're just gonna spray some soapy water, and this is just gonna help us loosen everything up. Now we're just gonna take a trim tool and pry it out from this cup. Just like that. And we're gonna be installing our light blue colored ones. And that's gonna be able to withstand 1400 pounds. Now if you need something for heavy duty due to your loads, then I'd recommend installing the black ones, which are gonna be able to handle up to 1800 pounds. But the installation process is gonna be pretty much the same, and we'll just slide it up until those tabs line up and catch on that jounce cup. And after, when you're done with this, just repeat that same process on the other side. And if you took your wheels off, make sure to just put them back on. Then just lower your Jeep back down to the ground and test out new springs.
Average Customer Rating: 4.7 out of 5 stars (2336 Customer Reviews)
1,800-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.
I have had these on my Jeep Gladiator for over a year now and I still like them. Sumo Springs really help with sag when towing my Scamp camper trailer and when the truck bed is loaded with stuff. When it is cold outside they are stiffer and I can feel when they hit the stops on hard bumps. Sumo Springs are a very easy overload spring option with factory lift.
Super easy to install as I did not have to use any tools. Replaced the short foam bump stop from the factory.
Work awesome on keeping my Gladiator level while pulling my travel trailer!
Easy to install on my Jeep Gladiator. I've used the Gladiator to pull a 23ft rv trailer also with the weight distribution hitch. The unit runs level without any squat. I think it is a good add on.
Simple install on my 2020 Jeep Gladiator. These springs seemed to help when towing our travel trailer.
Easy install. Just raise the rear of the truck enough to get the old bumps out which was very easy, place a little dish soap on the sumo spring to aid in the install, lower the rear of the truck and the springs should pop right in. If you have a lift kit place a block of wood between the sumo and bump stop plate.
Very easy installation in about 20 minutes. Very ingenious concept as opposed to bolt on leaf style helper springs
I installed Sumo Springs on our 06 Xterra right after we bought our Casita 17' trailer. The back of the X squatted a bit more than I liked. I had also noticed before some tendency to bottom out if the car was full of people and stuff. These ingenious devices are a perfect solution for me! They are about 3/4" clear of being engaged with the axle when unloaded, so the ride is not overly affected, but progressively take up some of the weight when the back end starts coming down with load. It now sits very nicely with the trailer connected, no weight distributing hitch and stuff in the back, and no more bottoming. We've put a good number of miles on the X in the last year, towing and not towing, and they are still doing the job.
I should note, the back of my Xterra is lifted about an inch with AAL springs. If that were not the case, the Sumo Springs would be engaged all the time. That will vary with vehicle.
I will also note that they are non-adjustable, unlike airbags. I kinda like that, I didn't want to mess with adjusting air pressure and such. But once they do start kicking in as one or both wheels travel, they do stiffen it up quite a bit. I mean, there's no way around that; you can't take load without stiffening the suspension. As such I think they inhibit upward axle articulation a bit when 4-wheeling, but for us that's not a big deal. Since they do not connect to the axle, they don't affect downward articulation at all.
The pics are shortly after installation, one with the car unloaded, and two with trailer and gear loaded up.
I believe it’s going to be a great addition to my truck when pulling our RV. Looking forward to a smoother, more even ride. I left the 2x4 blocks in overnig8ht and drove around to ensure a good seat for the springs.
I originally purchased the yellow sumo for additional support when hauling a small trailer or taking trash to the dump so I wouldn’t strain the vehicles suspension that I just replaced . I also never like to see a truck squat . Yellows were too stiff when unloaded so I got these blues sumo and it was a great decision . The ride type is back to original “comfortable” and the sumo still provides great handling when cornering reducing body sway / shock absorbing bumps. A good investment !
Gave it 5 because of ease of install - note they use SAE threads 9/16, truck frame and oem is metric 15mm wrench. Makes no difference but don't use oem nuts on spring. I installed all shims supplied and this left about 3/4" gap so hoing its the best for my needs. Easy to reduce if needed.
These were shipped to me mid-trip so I had a good chance to do a before and after with same loads/ same roads for 3100 miles. They were easy to install (in my daughters driveway) in about an hour with one reluctant bolt in the original bump stop. I did not install the hard spacer, I figured I’d add it later if needed. I was able to do the install w/o jacking up the whole truck using a 1 1/2 ton jack under the hitch receiver w/ a jackstand next to it. I needed just a few inches as there’s lots of room under the stock height truck (I was lying on a piece of cardboard). The helper springs didn’t quite touch the axle when the jack was removed. When I first drove it in town with the Sumo’s on it they were not really noticeable. When loaded up with my 22’ Livin’ Lite Axxess trailer (4300lbs with 650lb hitch weight) the rear end would squish into the overload springs a good 3/4” but the truck was about level w/o rear end sag.
Driving home over many of the same roads I noticed it was better over railroad crossings and rhythmic bumps on the highway that previously pitched it fore and aft. The trucks manners were much better overall during big hits (like hitting a curb- yup) and pulling off-highway. The trailer is low so it doesn’t go very far off road so I can’t report on that.
Overall for ease of ordering, of install, simple usage w/o need of airlines and effective control of the rearend of the truck and the trailer I feel they deserve the 5 stars.
I bought and installed the 1000lb Sumo Solo springs to help alleviate rear end squat on my 2024 GMC Canyon Denali when pulling my boat. My boat trailer has a long mono tongue with no weight distribution installed. The boat weighs in at about 5500lbs, the truck fender lip measures 38” high unloaded, once I dropped the hitch down on the ball and the Sumos picked up the load, the fenders measured 36.25” equating to an inch and 3/4 squat. Empty the Sumos have an apx gap of 7/8” above the frame rails. The Sumos were recommended over the Timbrens for my situation of infrequent towing with this truck and to maintain the best ride possible when not towing. So far my ride is virtually unchanged when empty and feels controlled when towing. Installation is straight forward but the instructions could be a little clearer with a diagram showing the intended location of the springs. Luckily an etrailer customer had already done the install and provided some pics so there was no question. I chose to remove the tires to have good access and I’d do it again this way. I supported the truck with a jack stand under the receiver. IMHO the proper method to locate the over frame upper clamp brackets is to push the forward clamp as far forward until it contacts the bed stiffener and you’ll be in the correct location then let all the hardware hang to position itself, tighten as required and enjoy.
These Sumo Springs were easy to install, even for a 70 year old guy. I tow a 7,000lb camper and even tho I have a nice WDH I still had som sag on my Tundra. These helped level it out when towing and got rid of “some” of the bounce. They were really a godsend when I overloaded the bed with about 2,000lbs of pavers. That weight squished the Sumos significantly but the truck drove and rode great. Better and less expensive than air bags.
The SumoSprings Solo came to the RV Resort today. I installed them on my Titan SV today in less than an hour. Only drove 10 miles with them and they are what I was looking for. In my opinion it was a needed upgrade and thumbs up!
Big difference in pulling the rv. I have about 545 lbs of Tongue weight.The sumo springs help with the swaying.Thanks again.
The Sumo Springs make the ride stiffer on rough asphalt roads. When the road is relatively smooth the ride is exceptable. They dont seem to handle the load like a air bag or progressive leafsprings but are working for my application right now.
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Todd
8/25/2023
A must have if you tow & haul to full capacity as I do .