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FITS 2003 GMC Sierra
SumoSprings Solo Custom Helper Springs - Rear Axle

SumoSprings Solo Custom Helper Springs - Rear Axle

Item # SSR-209-40
Retail:$316.91
Our Price: $284.99
You Save: $31.92
Vehicle Suspension
Confirmed to Fit
2003 GMC Sierra

1500 LD

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SuperSprings Intl vehicle suspension for your 2003 GMC Sierra are available from etrailer.com. Installation instructions and reviews for your GMC vehicle suspension. Expert service, and great vehicle suspension prices. etrailer.com carries a complete line of SuperSprings Intl products. Order your SumoSprings Solo Custom Helper Springs - Rear Axle part number SSR-209-40 online at etrailer.com or call 1-800-940-8924 for expert service.
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2003 GMC Sierra - SumoSprings Solo Custom Helper Springs - Rear Axle

  • Rear Axle Suspension Enhancement
  • Jounce-Style Springs
  • Light Duty
  • SuperSprings Intl

1,000-lb Capacity. Upgrade your GMC Sierra'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:

  • Helper springs upgrade your vehicle's rear suspension for improved driver control and comfort
    • Keep your vehicle level when you're towing or hauling a heavy load
    • Help to absorb bumps and shocks
    • Minimize sway
  • Progressive load control - springs compress according to the weight of your cargo
    • Lighter loads - springs compress easily at first for soft engagement and a less bumpy ride
    • Heavier loads - springs compress by as much as 80 percent for support
  • Springs work independently from each other to compensate for off-center loads and reduce body roll during sharp turns
  • Durable microcellular urethane
    • Works in temperatures from -25 F to 200 F
    • Resists damage caused by oils, road salts, and UV rays
  • Minimal lateral expansion - springs compress vertically instead of to the sides so they aren't easily damaged when operating in tight spaces
  • Maintenance-free - no tubing to run or air pressure to monitor like with air springs
  • Simple, no-drill installation
  • 2 Jounce-style springs included
  • Made in the USA


Specs:

  • Weight capacity (at 50-percent compression): 1,000 lbs
    • SumoSprings will not increase your vehicle's weight-carrying capacity
  • Limited lifetime warranty
  • 30-Day satisfaction guarantee


Rear Suspension Support

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.


Installed spring when it is not compressed

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.


Installed spring when it is compressed

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.


Durable, Custom-Fit Springs

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.



SSR-209-40 SuperSprings Sumo Springs Solo Rear GMC Sierra Suspension Kit for Trucks

Replaces SSR-209

Installation Details SSR-209-40 Installation instructions

Customer Satisfaction Score:


Customer Reviews

SumoSprings Solo Custom Helper Springs - Rear Axle - SSR-209-40

Average Customer Rating:  4.7 out of 5 stars   (2320 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.

by:
2018 GMC Sierra 1500

Big difference in pulling the rv. I have about 545 lbs of Tongue weight.The sumo springs help with the swaying.Thanks again.

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.



by:
2006 Chevrolet Silverado

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!!!!



by: 05/25/2021

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.



by:

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.



by:

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.

Etrailer Expert

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.



by:

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



by: 05/16/2024

Excellent!



by:
Chevrolet Silverado

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!



by:

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.

Etrailer Expert

Sierra K.

6/21/2022

You can also take off some of the washers so that they do not hit as soon.



by:
Nissan Leaf

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.



by:

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.



by:
GMCSierra

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.



by:

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.



by:
2015 Chevrolet Silverado

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



by:

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



by:
2010 Chevrolet Silverado

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.



by:
2017 Chevrolet Silverado

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.



by:
Chevrolet Silverado 1500

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.



by:
2014 Chevrolet Silverado 1500

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.



by:

Helped calm down the bounce when my utility trailer or camper were hooked up. Super easy to install, maybe took 15 minutes.



by:
Chevrolet Silverado 1500

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



by:

Made an instant impact on the way my truck handled towing my trailer!



by:

Works great easy to install, trailer rides level just like I wanted.



by:
2013 Honda Fit

Works great, easy install, quick ship by etrailer.



by:

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


25
2224
Show More Reviews

See what our Experts say about this SuperSprings Intl Vehicle Suspension

  • Recommended Suspension Enhancement For 2016 GMC Sierra 1500 With 4 Wheel Drive
    You are correct in looking at jounce springs to assist in your suspension. A great option I recommend for your 2016 GMC Sierra 1500 4WD, is the Super Springs SumoSprings Custom Helper Spring Kit, # SSR-209-40. This jounce springs will support the extra load to avoid sagging and give a slightly smoother ride than other jounce spring options for your vehicle. These springs expand and compress vertically with minimal expansion to the sides. They adjust progressively according to your cargo,...
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  • Recommended Tuner and Suspension Enhancement for 2015 Chevy Silverado 1500 4.3L V6
    I have just what you are looking for. For your additional power and torque on your 2015 Silverado 1500 with 4.3 L V6, I recommend the Superchips Dashpaq Performance Tuner # SU2060. For the suspension enhancement, I recommend the SumoSprings Solo Custom Helper Springs # SSR-209-40. These are a simple install into the factory bump stop locations. They are maintenance free. This will provide support and stability when your truck is under load or towing. If you want more adjustable...
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  • SumoSpring Helper Springs for a 2012 GMC Sierra 1500 4x4
    For the SumoSprings # SSR-209-40 for your 2012 GMC Sierra 1500 4x4 the springs will reach their 1,000 pound capacity at 50 percent compression. That means that there could still be some squat until the spring compress enough to stop it. But at the same time you are using weight distribution which will also work to prevent sag. So when all is said and done the 1,000 springs should do the trick.
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  • Recommended Suspension Enhancement System for a 2011 Chevy Silverado 1500 In 40 Degree
    The SumoSprings Solo Custom Helper Springs do indeed have a minimum temperature range of -25 degree Fahrenheit. If the temperature were to reach below this then they would become very brittle and could then crumble apart. Therefore, I instead recommend using the SuperSprings Suspension Stabilizer and Sway Control Kit part # SSA8MTKT which will add support just as the Solo Custom Helper Springs but there is no minimum temperature range.
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  • Cost Effective Suspension Enhancements for a 2012 GMC Sierra 1500
    The Custom Helper Springs Kit part # SSR-209-40 cannot be returned once installed. If you take them out of the box and physically inspect them to determine they are not to your liking then you can return them if you pay return shipping but again, they cannot be returned once installed. I would actually suggest a different product to help with rear end sag which are also both easy to install and cost effective. For this, I recommend the SumoSprings Solo Custom Helper Springs part # SSR-207-47...
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  • Comparing the Timbrens and SumoSprings for a 2014 Chevy Silverado 1500
    I have two options for you to help with squatting while towing with your 2014 Chevrolet Silverado 1500. These two options are the Timbren Rear Suspension Enhancement System part # TGMRCK15S and the SumoSprings Solo Custom Helper Springs part # SSR-209-40. The main difference between the two is that the Timbrens are made of a much more dense rubber so they will provide more support but the adverse effect of this is that they could also decrease the loaded ride quality. The SumoSprings are...
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  • Solution for Leveling 2016 Chevy Silverado 1500 when Towing Small Toy Hauler/Camper
    Actually the best solution I can provide for you is a weight distribution system. A WD system not only levels the suspension like a suspension kit but since it does so by redistributing some of the tongue weight up to the front axle you end up with improved braking and handling. For towing situations like yours this is hands down the best solution we can provide. For your setup that has 350 lbs of tongue weight the Reese Straitline system part # RP66082 would be the best choice as it fits...
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  • Install Video for SumoSprings Solo Custom Helper Springs SSR-209-40 on GMC Sierra 1500
    There is an installation video for you to check out on a GMC Sierra 1500 of the SumoSprings Solo Custom Helper Springs - Rear Axle # SSR-209-40. I have added a link below to this video, as well as a link to the instructions for you. The video is on a Chevy Silverado, which is the same thing so the install will be the same as on your truck.
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  • Ride Height of the Sumo Springs Solo Custom Helper Springs
    By design, the Sumo Springs Solo Custom Helper Springs, part # SSR-209-40, don't normally affect your ride height. However, there are some applications where there will be contact with the springs just because of the distance from the frame to the suspension. In these cases, there will be a little bit of rear ride height added. That being said, there's always significant improvement to rear ride height when loaded enough to engage the springs, as the springs get more solid as you add weight...
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  • SumoSpring Rear Axle Recommendation for 2017 Silverado 1500
    For your truck setup and trailer tongue weight of 700-lbs or less I would go with the 1000-lb Super Springs kit, part # SSR-209-40, which is the one you referenced in your question. These will engage with enough resistance to give you load support for leveling the rear without making the ride quality too harsh. An install video and written instructions are linked for you.
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  • Helper Springs and Weight Distribution for a 2009 Chevy Silverado 1500 4x4 and KZ Sportsman 241 RLLE
    I did some checking and the SumoSprings # SSR-209-40 do indeed fit the 4x4 models of the 2009 Chevy Silverado 1500. These will be a great option to supplement your weight distribution system and they will not be as stiff as other similar products like you said. If your tongue weight is over the capacity of the system then that is also part of the sagging problem you are having. For 700 to 800 pounds of tongue weight plus the weight of anything carried in the truck bed behind the rear axle...
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  • Can a 2011 Chevy Silverado 1500 4.8L V8 2wd Tow a 3,500 lb Travel Trailer
    Assuming your towing capacity is 4,700 lbs, you can safely tow a 3,500 lb trailer. In fact, 2wd trucks typically have a higher towing capacity than 4wd trucks and long bed trucks, or trucks with longer wheel bases, hold up better to towing issues such as trailer sway and traction control. I checked the owners manual for your truck and it only discusses the towing capacity for the 6.0L engines, but according to Trailer Life Magazine's towing guides, your truck should have a 4,700 lb towing...
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  • Is Unloaded Ride Affected When Using SumoSprings on 2009 GMC Sierra 1500
    The SumoSprings Solo Custom Helper Springs # SSR-209-40 will not affect the ride much on your 20098 GMC Sierra 1500 when you are not towing or it is not under a load. It will create a bit of a stiffer ride so while you will likely notice it some, the springs are still a good option for occasional towing.
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    Image 1 for
  • Will installation Of SumoSprings On 2007 Chevrolet Silverado Increase The Truck Height
    When the SumoSprings Custom Helper Springs Kit, part # SSR-209-40 is installed on your 2007 Silverado, it does not provide any lift for your truck. There should be a small gap between 1/2 and 1-1/2 inches from the bottom of the SumoSpring to the axle. When a load is placed in the back of your truck it will make the bed lower and the springs will provide extra support and help make the ride smoother.
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    Yes. The SumoSprings Solo Custom Helper Springs 1000 lb springs # SSR-209-40 and the 1500 lb springs # SS45FR are a similar length. The 1500 lb springs are 1/4 inch longer at 11 inches and they are also slightly wider. This is what helps them have the higher support capacity. The 1500 lb option also has the ability to utilize a spacer if you want them to engage sooner. When the vehicle is run unloaded, there won't be any noticeable difference in ride quality because the factory suspension...
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    The air helper springs I strongly recommend for your 2018 Chevy Silverado 1500 Z71 are the SumoSprings Solo Custom Helper Springs # SSR-209-40 because they offer your truck the best combination of ride enhancement and durability. The SumoSprings will compress while under a load but do so progressively and independently on each side. What this means is that you will not only continue to have a centered load but your truck won't immediately have a bumpy ride with a lighter load because the...
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    Thanks for the photo and thorough explanation of what is happening with your Husky Centerline # HT32218. Since your truck and trailer are sitting within 1-2 inches of level you are good as long as you are comfortable driving. It sounds like you like having the tongue weight a little heavier for steering and that is fine. The tow vehicle having a 1/4 rise in the front isn't too bad and you won't lose much visually from the different angle of your head lights. Because you are so close...
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  • Rear Suspension Enhancement Recommendation for 2013 Ford F-53 Bounder 33C
    The best option for your 2013 Bounder 33C is the SumoSprings kit part # SSR-180-54-1. This will give your rear axle the additional support you are wanting without the maintenance of an air bag kit or the harshness of a Timbren. This will also give the RV more stability and better handling. There isn't a way to actually increase the axle capacity but this will get rid of the sag like it sounds like you are really after.
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  • Suspension Enhancement Recommendation for 2010 Chevrolet Silverado Towing Camper
    To provide some extra help to your 2010 Chevrolet Silverado 1500's suspension, the Custom Helper Springs Kit # SSR-209-40 will work well for you. These microcellular urethane springs add support to your existing rear suspension and improve the handling and overall ride of your truck. These helper springs will also help extend the lift of your truck's suspension by giving the leaf springs extra support when needed, such as when you are towing your trailer. These springs offer a custom fit...
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  • Suspension Enhancement Recommendation for 2009 Chevy Silverado Smoother Ride Quality than Timbren
    Timbren's do tend to have a somewhat harsh unloaded ride quality. The SumoSprings part # SSR-209-40 would give you a much smoother ride quality and would still give you the needed support when loaded. I attached an install video for more info for you to check out as well.
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  • How to Help a 2018 GMC Sierra 1500 with Rear End Sag
    In order to help keep the rear end of your 2018 GMC Sierra 1500 from sagging while towing or hauling your four wheeler I recommend using the SumoSprings Solo Custom Helper Springs part # SSR-209-40. This spring will replace the factory jounce spring that you have on your truck and provide you with a cushion between the frame and rear axle that will help to alleviate some of the rear end sag you have while towing or hauling. The best option about this system is that it will not affect ride...
    view full answer...
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