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1,000-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.
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.
Average Customer Rating: 4.7 out of 5 stars (2495 Customer Reviews)
1,000-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.
These work great for my 2014 Chevrolet Silverado 1500. I pull a 7,000 pound 30 foot Sportsmen RV with a bumper-hitch (heavy tounge-weight). I thought about replacing the leaf springs (way to expensive and difficult to install), but these work great! Under normal load, they are about a half-inch from the top of the axle, so they don't really affect the normal day to day suspension travel (allowing for the shocks and leaf springs to provide the support). My leaf springs are saggy, so it doesn't take a lot of weight to contact the Sumo's. (Also, I have Monroe load-level-load-assist nitrogen charged shocks...Which I highly recommend If you don't haul much weight or don't trailer, the Monroe's are good (awesome)enough without the Sumos). When the trailer rocks up and down after a bump, the Sumo's don't 'thud' when they contact the top of the axle. Smooth, and they reduce the body-roll (when under load) because they remain in constant contact with the top of the axle. Just unscrew the old bump-stops (with a bit of effort) and screw these right in. I would highly recommend! Make sure you get the blue ones identified for the 1500. not as stiff as the ones for the 2500, 3500. Do it!
Big difference in pulling the rv. I have about 545 lbs of Tongue weight.The sumo springs help with the swaying.Thanks again.
I installed these sumo springs on the rear of my 2006 Chevy Silverado. The installation took approximately one hour and a half from start to finish. I pulled my travel trailer having a Tongue weight of approximately 392 pounds with a 492 pound Honda scooter strapped in the bed of the truck which still did not exceed the weight rating of the truck. The bounce the truck had prior to installation was eliminated completely. I highly recommend the sumo springs for anyone needing a more stable ride with a load (sumo springs make direct contact and provide stability) or without a load ( sumo springs ride approximately 1/4 of an inch above rear end bump plate). I have had experience with air bag suspensions and they are fine too; but, with sumo springs you can, “set it and forget it” because you have no air lines to worry about air leaks and uneven load distribution due to a lack of air on either side. Thanks etrailer once again!!!!
2018 silverado z71 crew cab 6'6 bed
Replaced air bags with 1000# sumo springs. Do a lot of offroading and bags limited travel. With these I can use my suspension and stay level on the trip with all my gear. Nicer ride unloaded and even sweeter when loaded. Easy 40 min install if you're use to working on your own stuff. A definite upgrade.
Replace the failed original bump stops today. After figuring out that I had to remove the old bump stop brackets from the top, the installation only took about 40 minutes. The back of truck used to sag quite a bit when boat was hooked up, now it only sags 1 3/4 inches. I have not hauled the boat on bumpy roads or highway speeds yet so the ride quality is yet to be determined.
These are good IF you never drive anywhere that gets below 50 degrees. Otherwise you might as well just weld the frame of your truck to the axle. Seriously in the winter (Montana) these are terrible. Zero squish to them. If you need more towing capacity, get a bigger truck!
WASTE OF TIME AND MONEY! I removed these and tossed them in the dumpster.
Jenny N.
6/15/2023
Hey I am sorry that you did not have a good experience with these springs. I know that they are rated to work from -25 F to 200 F. For a different option for your 2015 Chevy 1500 take a look at part # TGMRCK15S. It is a rubber spring that installs in the same way.
I Received the SumoSprings Solo Custom Helper Springs shipment today and installed them on my 2017 Chevy Silverado 1500 standard cab long bed truck. It took about 30 minutes to install the helpers springs. I watched the install video and read the installation instructions on the etrailer website while waiting for the shipment to arrive. They were easy to install without jacking up the truck, I laid flat on my back and slid under the truck on my garage floor and had no problems at all. After installation I hooked up my 20 ft travel trailer and went on a test drive. The helper springs made a big difference and gave a more solid stable performance with the truck while towing my 5,000 lb travel trailer. I've installed airbags on previous trucks and I believe for the money and easy installation this is the best option to improve towing performance.
Steve N.
11/14/2020
Excellent
I hated pulling my camper with my 1500 Silverado. It swerved at every puff of wind, especially when a tractor trailer would pass me. It took me maybe a half hour to install the sump springs and what a difference they've made. No swaying and I can now enjoy pulling the camper. Worth every penny!
Claude S.
10/24/2021
Works way better than I expected. Cant believe something so easy to install works so well. Took out the fear of pulling a heavy camper!
These definitely helped with the sag when hooked up to my trailer but caused terrible bounce when unloaded and driving over whoops on highway. I replaced them with air suspension after 2 months. Much better setup.
Sierra K.
6/21/2022
You can also take off some of the washers so that they do not hit as soon.
Excellent!
Sumosprings are simple to install. And seem to work great. If you need a little help from squishing your leaf springs, these are great.
David
5/28/2021
This is a great product for assisting your leader springs. Makes the ride a bit stiffer when empty. Air bags are a better choice, but cost a lot more too. Honestly, if your factory springs cant handle the weight, you need a bigger truck.
Added these to my 2001 Chevy Silverado 1500 (regular bed, regular cab) after noticing the original bump stops were missing. I use my truck frequently for hauling, and occasionally for towing.
Pros -- really tightened-up the suspension. When towing and when the truck is loaded, it performs much better. I don't doubt these have increased the amount the truck can safely carry and tow. The truck even seems to corner better.
Cons -- These really tightened-up the suspension. When driving unloaded, the truck rattles you more than it used to. Though they are called "helper" springs, they are basically constantly helping, even if you are unloaded.
Ultimately, it's a trade-off, and if you use your truck for its intended purpose, then it's a good trade. But if you primarily want comfort driving an empty vehicle on the interstate, then this upgrade is not for you.
Gus W.-Great product, very easy to install. I'm towing a 5730 lb. trailer with a 1500 pickup.
It swayed before and the sumo springs took care of that problem also took some of the sag out of the suspension. With the sumo springs I never have to worry about a torn air bag.I would definitely recommend this product.
2009 GMC Sierra CC 2WD
Installed after my wife came home with a 600lb decorative stone from a one hundred year old high school being torn down. Not having a good way to unload it, I decided to use it for winter weight last year. OEM springs were not sagging but my longer mudflaps did contact pavement at times and wanted more support on the curves. SumoSprings brought it up to factory height and gave the support in the corners.
My work truck (2015 Chevy Silverado 1500) is regularly loaded with 800 to 900 pounds of tools. Before installing the Sumospring the ride was kind of mushy. Now there is a nice spring to the ride, it feels like an empty truck. Installation was easy except that the 10 mm washers provided did not fit. A quick trip to the hardware store was the remedy.
I installed the new springs a month or so with out any problems on my 2015 Silverado 1500. They raised the tow hitch height 4-5 in
And stiffened the rear suspension. There is now less bounce and sway on the rear end of the truck along with a smoother ride
Received excellent advice from Darren at etrailer. Based on my specific needs he recommended a low maintenance solution and less costly. Had only one installation question when product arrived. A different etrailer rep could only advise a 24 hour turn a round time to respond. Called the manufacturer to get the questioned answered to complete the install. For a 2017 Chev Silverado there is no need for the washers or the spacers for install. They will update their install instructions for newer model trucks. Would have rated a 5 if install question was addressed. Thanks Darren for your recommendation about this product. It is more preferable than a air lift system. No more sag when towing an occasional trailer.
Installed the SumoSprings Solo Custom Helper Springs on my 2020 GMC 1500 4x4 today and "Wow", what a difference. Handles like a completely different truck. No more constant bouncing over minor bumps and dips in the road. No more leaning into the turns. Didn't alter the ride height or stiffen the ride. Best money ever spent on this truck.
be aware that there is three different load rating of springs available.. i didnt see that at first and ordered the yellow ones.. yellow is the highest load rating(2800 lbs i thnk) and will produce a "very" stiff uncomfortable ride if truck is unloaded because those springs are very close to the axle.. black is medium(1500 lbs) and the blue is 1000 lbs
Worked very well tamed the porpoising when towing the camper. I removed them when not camping during winter because they are a little stiff riding when truck is empty. Very easy install and removing 15 min.
Mark R.
10/24/2020
Excellent still working very well would recommend to anyone looking to boost the suspension in the rear of your truck15 Silverado
I giving a 5 star rating and haven't installed yet. All the help I received from etrailer was terrific, plus all the reviews were a big help, plus I have bought from them before info was great shipping very fast, and carry quality products. Will definitely purchase from etrailer in the future.
Made an instant impact on the way my truck handled towing my trailer!
Helped calm down the bounce when my utility trailer or camper were hooked up. Super easy to install, maybe took 15 minutes.
Works great, easy install, quick ship by etrailer.
Installed in 10 min. Easy install.Have not tried them yet.Boat is at the dealer.Will know when I pick it up.
Tim
8/23/2020
Great
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Lyle
6/3/2024
They have been great.The ride is great with or without the trailer.No truck squat with the trailer on nice and level.Makes a big difference in towing.Thanks again for the great service and products that you provide.