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  1. Vehicle Suspension
  2. Chevrolet
  3. Silverado 1500
  4. 2015
  5. SuperSprings Intl
FITS 2015 Chevrolet Silverado 1500
SumoSprings Custom Helper Springs - 2 Piece - Rear Axle
SuperSprings Intl

SumoSprings Custom Helper Springs - 2 Piece - Rear Axle

Part Number: SS29EV
In Stock
$714.99
Vehicle Suspension
Confirmed to Fit
2015 Chevrolet Silverado 1500

2 Wheel Drive

4 Wheel Drive

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The best technical support and full vehicle suspension installation instructions. Great price Silverado 1500 vehicle suspension and expert service. Chevrolet Silverado 1500, 2015 vehicle suspension by SuperSprings Intl are available from etrailer.com. For expert service call 1-800-940-8924 to order your SumoSprings Custom Helper Springs - 2 Piece - Rear Axle part number SS29EV, or order online at etrailer.com.
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  • Reviews (11)
  • Q & A (0)
  • Videos (2)
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2015 Chevrolet Silverado 1500 - SumoSprings Custom Helper Springs - 2 Piece - Rear Axle

  • Towing/Load Leveling
  • Bump Stops
  • SuperSprings Intl
  • Standard Duty
  • Rear Axle Suspension Enhancement

2,000-lb Capacity. These maintenance-free microcellular urethane springs upgrade your Chevrolet Silverado 1500's rear suspension. Each 2-piece spring connects at top and bottom and provides unlimited suspension travel and movement for a smooth, comfortable ride.


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
  • 2-Piece design provides unlimited suspension travel and movement for a smoother ride when unloaded or on rough terrain
  • 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 expand and 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
  • Easy, bolt-on installation
  • 2 Jounce-style springs and necessary hardware included
  • Made in the USA


Specs:

  • Weight capacity (at 50-percent compression): 2,000 lbs
    • SumoSprings will not increase your vehicle's weight-carrying capacity
  • Limited lifetime warranty
  • 30-Day satisfaction guarantee


Rear Suspension Support

SumoSprings helper springs are great for pickup trucks. Towing or hauling a heavy load can cause 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 truck's weight. 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 factory suspension to level your vehicle, improve driving performance, and keep your ride comfortable.


SumoSprings installed showing separation of 2-piece springs

The innovative 2-piece design of these springs allows for unlimited suspension travel. This means that there will be more movement in your suspension when you're unloaded or off-roading, which makes your ride smoother and more comfortable.


Each spring has 2 pieces. One piece attaches to the frame of your vehicle. And the other piece attaches to the axle, typically above your existing factory leaf spring. The pieces come together to provide support when you are towing or hauling a heavy load. When you're unloaded, they separate so that they don't restrict the movement of your suspension. The closed-cell urethane springs also act like a shock absorber to dampen road vibration.


SumoSprings compressing under load

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 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 expand and 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.


This kit comes with custom-fit brackets that are designed to easily bolt onto your vehicle.



SSR-218-47-2 SuperSprings Sumo Springs Rear Chevrolet Silverado 1500 Suspension Kit for Trucks - 2 Piece

Installation Details SS29EV Installation instructions

Video of SumoSprings Custom Helper Springs - 2 Piece - Rear Axle

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for All About the SumoSprings Custom Helper Springs

Hi everybody, Andy here with etrailer.com, and today, we're gonna take a look at the SumoSprings Custom Helper Springs for your rear axle. Now, this is a custom fit product that is going to fit the 2008 to 2013 GMC Sierra 1500 and Chevrolet Silverado 1500, and then the 2014 to 2018 GMC Sierra 1500 and Chevrolet Silverado 1500 two-wheel and four-wheel drive, and then the 2019 GMC Sierra 1500 Limited and the Chevrolet Silverado 1500 Limited two-wheel and four-wheel drive, and then finally, the 2007 GMC Sierra New Body 1500 and the Chevrolet Silverado New Body 1500. To confirm if these are going to work for your vehicle, please take advantage of our vehicle fit guide on our website at etrailer.com and input the year, make, and model of your vehicle, and our fit guide will let you know if these will fit your vehicle. Now, SumoSprings Helper Springs are great for pickup trucks. Towing or hauling a heavy load can cause sag as your factory suspension compresses under the weight of the load, and that means that the rear axle is trying to support not only the extra load, but also your truck's weight, 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 factory suspension to level your vehicle, improving driving performance and keeping your ride comfortable.

The innovative 2-piece design of these springs allow for unlimited suspension travel, this means that there will be more movement in your suspension when you are unloaded or off-roading, which is gonna make your ride smoother and more comfortable. These springs feature progressive load control, and what that means is they are going to compress according to the weight of your cargo. For lighter loads, the spring compress easily at first for soft engagement and less bumpy ride, and for heavier loads, the springs compress by as much as 80% for support. Now, these springs work independently from each other to compensate off-center loads and reduce body roll during sharp turns. These are made in the USA of durable microcellular urethane, they are going to work in temperatures from -25 degrees Fahrenheit to 200 degrees Fahrenheit, and they will resist damage caused by oils, road salts, and UV rays.

They have minimal lateral expansion, the springs expand and compress vertically instead of to the side, so they aren't easily damaged when operating in tight spaces. Another nice thing about these springs is they are maintenance-free, no tubing to run or air pressure to monitor like with air springs. It's gonna be an easy bolt-on installation, and it includes everything that you see on my table in front of me. You're gonna get the two jounce-style springs, the custom fit brackets, and all of the necessary hardware that you're going to need to successfully install these, and then you're also going to get instructions to walk you along and guide you step-by-step during the installation process. Well, that's gonna conclude our look today, I do hope that it was helpful for you.

Again, my name is Andy, thank you for joining me..

Ratings & Reviews

4.9

11 reviews
2,000-lb Capacity. These maintenance-free microcellular urethane springs upgrade your vehicle's rear suspension. Each 2-piece spring connects at top and bottom and provides unlimited suspension travel and movement for a smooth, comfortable ride.

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Instruction could be a little more deta iled.



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Always great customer service and speedy delivery.
SumoSprings easy to install, no issues.



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Always the fastest shipping, outstanding customer service and high quality products.



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Added 2” spacers on each side so the Sumosprings touch my frame. Relatively easy to install, but centering on the frame was a challenge as the directions tell you to touch the wire harness bracket. I elected to be slightly off center so the bracket did touch to prevent movement and wire damage. Also, once initial installation is performed, you must remove to tighten, which is not in the directions. Overall, the ride has not changed at all and it helps eliminate the drop from my trailer. Highly recommend!



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2023 Tundra SR5 TRD Sport. Install was pretty easy, do take the tires off, makes it a lot easier. Just note that the bolts towards the back of the truck will need to be put in and started prior to the other 2 bolts due to the spring partially covering the hole. See the pics and you can see this. But I did finally tow my 9k camper with these installed and it took out the sag of the truck and the floating side to side was next to zero. And the stuff inside the camper wasn't tossed around near as much as it was without these springs installed.



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Package arrived intact only 5 days after ordering. Contents undamaged and well packed. On my new 2024 Toyota Tundra the installation was very simple, straight-forward and easy. In my garage I raised the rear of the truck with a floor jack, gathered my tools and started about 45 minutes after the package arrived. Took me about 20 minutes on the drivers side because I lacked any previous experience with this product. Only took about 10 minutes for the passenger side because I was more comfortable after doing the drivers side. I didn't even have to remove the rear tires. Keep in mind that I am a very mechanically inclined yet 68 year old guy laying on a creeper underneath a wet truck. The mounting brackets are very heavy-duty and thickly painted. Actually heavier duty than the originals. Bolt holes in the brackets were exact matches for my Tundra. After lowering the rear of the truck back down there is still approx. 3/4" clearance ( previous 6" clearance measured at the original factory bump-stops prior to removal) between the bottom of the Sumo helper and the axle rest. This is about the amount of clearance I was hoping for---make contact at about 5-1/2". Leaves me about 3/4" free travel during everyday, unloaded driving. Without the Sumo's my truck sagged 3" with 575 lbs camper tongue weight. Raining outside so I'm not going to hook up my camper just to measure the difference today. However, if it now sags even 1 to 1-1/2" less than before, I'll be a happy camper (pun intended).
I gave this a 5-star rating because I received everything exactly as advertised. Also because I can see how this product will absolutely make my camper-towing experiences much more pleasant and safe. And the Limited Lifetime Warranty certainly was a factor. I usually don't take time to write reviews but I was so impressed with the overall quality of this particular product and the ordering process that I felt I owe them that much as a tip.


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See what our Experts say about this SuperSprings Intl Vehicle Suspension

  • Rough Ride with 2K SumoSprings on 2018 GMC Sierra 1500 Denali
    I do have some other options for you but adding suspension enhancements to a vehicle will more often than not decrease ride quality as they are designed to prevent sag and in order to do so you must increase firmness which leads to a rougher ride. Furthermore, there are very few options for a 2018 GMC Sierra 1500 Denali due to the MagneRide suspension. It looks like you went with the SumoSprings Custom Helper Springs part # SS29EV which are engaged all the time. If you're looking for an...
    view full answer...

Info for this part was:

Employee Dustin K
Video Edited:
Dustin K
Employee Jonathan Y
Video Edited:
Jonathan Y
Employee Wilson B
Updated by:
Wilson B
Employee Daron K
Edited by:
Daron K
Employee Alex H
Written by:
Alex H
Employee Andy C
Installed by:
Andy C

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