bing tracking image
  1. Vehicle Suspension
  2. SuperSprings Intl
  3. Jounce-Style Springs
  4. Rear Axle Suspension Enhancement
  5. Standard Duty
SumoSprings Custom Helper Springs - 2 Piece - Rear Axle

SumoSprings Custom Helper Springs - 2 Piece - Rear Axle

Item # SSR-139-40-2
lowest price pledge
Our Price: $589.99
Vehicle Suspension

Will this fit?

To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.

This item qualifies for Free Shipping
Shipping Weight: 24 lbs
Quantity: 
In Stock
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

Need help with installation?
Locate installers near me
3,000-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. Lowest Prices for the best vehicle suspension from SuperSprings Intl. SumoSprings Custom Helper Springs - 2 Piece - Rear Axle part number SSR-139-40-2 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (1373)
  • Q & A (0)
  • Videos (1)
  • Photos
  • Why etrailer?

SuperSprings Intl Vehicle Suspension - SSR-139-40-2

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

3,000-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.


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): 3,000 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-139-40-2 SuperSprings Sumo Springs Rear Vehicle Suspension Kit for Trucks - 2-Piece

Replaces SuperSprings SSR-115-40-2

Installation Details SSR-139-40-2 Installation instructions

This Product Fits The Following Vehicles




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 Review of SuperSprings Vehicle Suspension - Rear Axle Suspension Enhancement - SSR-139-40-2

Today we're going to take a look at the SumoSprings two-piece, rear axle custom helper springs. Now this is a custom-fit part. It is designed to fit the 2011, 2016, Ford F250 and F350 four-wheel drive vehicles. And on a custom-fit part like this, I'd always recommend for you to go to our website, use our fit guide, put in your year and model vehicle and it will show if this will work for your application.Now these are helper springs. It will upgrade your vehicle's rear suspension for a nice improved driver control and comfort, helps keep your vehicle level when you're towing or hauling a heavy load, and it helps to absorb bumps and shocks, even minimize sway.Now, these are a two-piece design you can see here. They provide unlimited suspension travel and movement for a nice smoother ride when unloaded or even on a rough terrain.

They do offer progressive load control, which means the spring are compressed according to the weight of your cargo. So if you have a lighter load, the springs compress easily at first for nice soft engagement and a loess bumpy ride. And if you have a heavier load, the springs will compress by as much as 80% for support.Now these springs do work independently from each other. They compensate for off-center loads, and they'll help reduce body roll during sharp turns. They are made of a durable, micro-cellular urethane.

They're designed to work in temperatures from a -25 degrees Fahrenheit up to 200 degrees Fahrenheit. And they do resist damage that can be caused by oils, road salts, and UV rays.They do offer minimal lateral expansion, which means the springs will expand and compress vertically instead of to the side so that they're not easily damaged when operating in tight spaces. And they're maintenance free. There's no tubing to run or air pressure to monitor like with air springs.They are easy bolt-on installation. They do come with everything shown here on the table.

The two John-style springs, all your necessary mounting hardware to install it, nice set of detailed instructions that will describe how to install everything, and these parts are made in the USA.Now, the weight capacity of these springs at 50% compression is 3,000 pounds. And one note is the SumoSprings will not increase your vehicle's weight-carrying capacity, so you do want to just make sure to pay attention to what the weight carrying capacity is on your vehicle. But that should do it for the review on the SumoSprings two-piece rear axle custom helper springs.


Customer Reviews

SumoSprings Custom Helper Springs - 2 Piece - Rear Axle - SSR-139-40-2

Average Customer Rating:  4.7 out of 5 stars   (1373 Customer Reviews)

3,000-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.
0
0

Ask the Experts about this SuperSprings Intl Vehicle Suspension

  • Best SumoSprings Helper Springs for a 2014 Ford F-250
    The SumoSprings Custom Helper Springs item # SSR-139-40-2 for your 2014 Ford F-250 work by using progressive load control. This allows the springs to compress according to the weight put on them and do not require spacers. The heavier a load you put on your truck the more the springs compress. This feature also allows you to keep your factory ride when you are not towing or hauling. Other systems can cause a stiff ridged feeling in your rear end but you won't have that issue with the SumoSprings....
    view full answer...
  • Difference Between SumoSprings and Air Bags for 2014 F-350 5th Wheel Towing
    Thank you for the information! Air bags are great because you can adjust the stiffness to accommodate varying loads. If you plan on using the truck for a wide range of jobs, like towing the 5th wheel and hauling different weight loads, quite often then air bags will be your best friend. If you are basically only going to be using the truck to tow the 5th wheel then you'll like the SumoSprings better because you don't have to think about them once they're installed. For SumoSprings I recommend...
    view full answer...
  • SuperSprings Stabilizers and SumoSprings Helper Springs For a 2012 Ford F-250 4X4 Super Duty
    The SuperSprings Custom Suspension Stabilizer and Sway Control Kit # SSA22 are a great starting point for your 2012 Ford F-250 4X4. These will help to reduce sag and provide additional sway stabilization. The multiple mounting points on the shackles will allow you to choose the amount of preload on the springs. This is great for worn springs as it will help to maintain ride quality when unloaded. The Off-Road Poly Pad Mounting Kit # P1KT will prevent the SuperSprings from shifting forward...
    view full answer...
  • Recommended Helper Spring System for Gooseneck Hitch Equipped 2014 Ford F250
    Your best helper spring option will depend on what all you use your truck for. If the primary use is towing a 5th wheel, I'd honestly go with something like the SumoSprings # SSR-139-40-2 for 4WD trucks or # SS29MR for 2WD trucks. The SumoSprings product offers 3000 lbs of additional support and is ideal for gooseneck or 5th wheel towing situations where the weight applied to the rear suspension doesn't vary much. The SumoSprings won't affect your ride quality until a load applied to...
    view full answer...

Do you have a question about this Vehicle Suspension?




  • Why etrailer.com?

    At etrailer.com we guarantee:
  • Highest quality vehicle suspension for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate vehicle suspension information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Employee Jeff D
Video Edited:
Jeff D
Employee Wilson B
Updated by:
Wilson B
Employee Alex H
Updated by:
Alex H
Employee Noah M
Updated by:
Noah M
Employee Daron K
Edited by:
Daron K
Employee Jessie B
Written by:
Jessie B

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.