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Get the cushioning power of SumoSprings for your rear coil springs and keep your ride comfortable. The wedge-shaped springs fit between the individual coils of your existing springs and help support heavy loads on your rear suspension.
Features:
Specs:
Insert these helper springs in between the individual coil loops in your rear coil springs to defeat driver fatigue and add better support for heavy loads. Most factory coil suspensions have a difficult time hauling added weight. The rear coils may struggle with supporting the extra load placed on your rear axle when you're towing a trailer or using a hitch-mounted cargo carrier or bike rack. If your coil springs are totally squished under a load, the lack of shock absorption can be harsh on your backside, especially if you spend long hours sitting in your vehicle while driving to your campsite.
Inside each helper spring, a core of microcellular polyurethane foam adds cushioning between your coils to make your ride more comfortable. Each doughnut-shaped spring has H-shaped channels at the top and bottom that fit to the rung of an individual coil in your rear coil springs. The cushioning absorbs shock, but also works progressively to better support weight, keeping your truck level.
Unlike air springs that fit inside your coil springs, these polyurethane springs require no air pressure monitoring, and they are easier to install. Say goodbye to air lines, valves and air tanks and hello to maintenance-free suspension support. Unbumpify your ride with Coil SumoSprings for coil suspensions.
Average Customer Rating: 4.6 out of 5 stars (429 Customer Reviews)
Get the cushioning power of SumoSprings for your rear coil springs and keep your ride comfortable. The wedge-shaped springs fit between the individual coils of your existing springs and help support heavy loads on your rear suspension.Our 2010 toyota sienna def doesn't sag as much with our full load of 2 parents, 5 teens, and our luggage. No more scraping of our attached hitch on the driveway apron. Since they have progressive resistance, the ride is still comfortable when not under load, but well-supported when loaded.
Install was a damn wrestling match - def NOT as easy as the video.
Ultimately I'm glad I chose these over the airbags bc now that they're in, they are maintenance free. One note, the version I got did not have holes for zip ties like a preview video had. I'm not concerned about that though bc of the tight fit, there's no way they're falling out.
Easy to install on 2020 Mercedes Metris Cargo Van if you remove tire, clean spring and use soapy water to lubricate coil. Reduced "squat" about 3/4" for ~325 Lb. trailer tongue weight without weight distribution hitch.
2011 Highlander with factory tow package and hitch towing a Casita 17' Liberty Deluxe. Just completed a Three week 5700mi. trip from Florida to Salt Lake City, Utah returning via Big Bend, TX.
Shipping was quick and items well packed.
Installation was very easy an took less than an hour start to finish. Wheel removal, not required. Just jacking up enough to unload the suspension. I did use a few more zip ties than were supplied for good measure.
Ride quality was unchanged with no trailer.
Rear sag was reduced slightly with trailer hitched but not to the extent I would expect. I still get cars flashing their high beams, with me on low beams.
Porpoising was reduced and is probably the single biggest advantage to having these installed.
These ere OK but I hope something more effective will soon enter the market.
After installing SumoSpring helpers, it increased my Cart Carrier approximately 1 3/4 inches in height. They also increased my ride stability. I would recommend this product. I am 100% satisfied!
I have a 2008 Sienna that I pull a pop-up camper with. However, the Sienna sits really low in the back as is. With a trailer attached, the receiver would practically drag on the ground. After researching several different solutions, many of which being really expensive options (lift kits, etc.), I landed on the Coil SumoSprings. While advertised for performance, I read that they provide a bit of lift and prevent the springs from bottoming out. Installation was a bit tricky due to not owning a lift, but with the wheels and tires off (and an excessive amount of soapy water), They slid into place. The van sits almost 2 inches higher in the back. With the van fully loaded, a roof bag full on top, and the camper attached, the rear sits right about where it did without the springs when it was empty. These things are amazing! However, they were only about $60 when I purchased them last year. The price is much higher now, but still less than the other options I researched. I am super happy with the solution!
extremely fast delivery. Product installation instructions didn't quite work but the company was excellent when called for help with installation.
I thought I would try these because the price is right compared to installing automatic airbags. Unfortunately there is absolutely no difference in sag when towing my boat.
Very easy install 15 min or so. Raised my hitch 1 1/4 inch without weight. 2013 quest, maybe It will handle a million kids and all the gear better.
These were purchased for work vans and so far have worked great, the van sits level now and the tires are wearing even.
Overall I feel the product helped stiffen the ride, but under full load I feel they could do more to reduce squat.
The package arrived the next day! My husband was pleased with the product. He install the pieces yesterday. He seemed happy with the product. The boat trailer now rides in a better position.
Item worked as advertised. It helps to Not bottom out with heavy load in trunk of car.
Works well. But I had to go to my mecanical shop to install. Impossible to install by myself.
2021 Highlander front with drive V6. Product is right on the money for description. My Bass boat is 3900lbs, definitely took a 1-1/4 out from the sag. Also, extremely less bounce. I would prefer to have air bags, though no one makes them for my year. This is a great alternative.
I have a 2015 Subaru Outback. When towing it went from a mushy rear end to a nice stiffness. Max tongue weight is 275# and with 220# on a recent trip (~2000# trailer weight) it only squatted the rear end about an inch (after rolling back and forth to let it settle).
Previously I was getting instability above 60mph especially when hitting the bumps at the ends of bridges. On my recent trip I was able to hit 80mph with the car feeling totally planted.
When totally empty you do get just the smallest hint of a 'truck like' ride but I typically carry some tools and other stuff all the time and that dampens it.
For install I found it helped to sort of feed the sumo into the coil as you kinda roll your hand over the part juming into the groove.
Works exactly how I needed. The Ride is still very nice. There's about 350lbs with the weight of the box & rack. Suspension in the rear used to sag a bunch, even with a 2" suspension lift.
Installation was a bit more difficult than anticipated, however, for an 81-year-old guy, most everything is. The SumoSprings work just fine. I feel like they've reduced the sway and increased stability while hauling our Tab320 trailer with our Subaru Outback. Service from eTrailer was fast.
Installed the CSS-1168R Coil SumoSprings Custom Helper spacers on a 2011 Honda Ridgeline 4 wheel drive rear springs. Installation took about 45 minutes including removal of tires. Once spacer was started the installation was easy.
Zip ties were a little more difficult because of the dust strut covers installed by Honda.
Shipping was fast and packaged well. The material looks and feels durable and easy to install but is a little loose on the springs, and not as snug as I thought. Although once I did a test drive around the neighborhood it tighten itself on the coil springs and hope it stays that way!
Did not fit the 2022 Subaru Outback as advertised making these a total cash grab on etrailers part. Buyer Beware. Incorrect fitment guide means expensive mistake.
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