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SumoSprings Solo Custom Helper Springs - Rear Axle
SuperSprings Intl

SumoSprings Solo Custom Helper Springs - Rear Axle

Part Number: SSR-207-47
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Vehicle Suspension

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1,500-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. Great Prices for the best vehicle suspension from SuperSprings Intl. SumoSprings Solo Custom Helper Springs - Rear Axle part number SSR-207-47 can be ordered online at or call 1-800-940-8924 for expert service.
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SuperSprings Intl Vehicle Suspension - SSR-207-47

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

1,500-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.


  • 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


  • Weight capacity (at 50-percent compression): 1,500 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-207-47 SuperSprings Sumo Springs Solo Rear Vehicle Suspension Kit for Trucks

Installation Details SSR-207-47 Installation instructions

This Product Fits The Following Vehicles

Customer Satisfaction Score:

Customer Reviews

SumoSprings Solo Custom Helper Springs - Rear Axle - SSR-207-47

Average Customer Rating:  4.7 out of 5 stars   (2367 Customer Reviews)

1,500-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.


I believe it’s going to be a great addition to my truck when pulling our RV. Looking forward to a smoother, more even ride. I left the 2x4 blocks in overnig8ht and drove around to ensure a good seat for the springs.

David W.


To celebrate our anniversary with our trailer suspension we drove from the Western Slope of Colorado to eastern Kansas, picked up a larger and heavier travel trailer and had no issues with the additional weight. Our suspension performed flawlessly. Thank you trailer for your support and super products.


They worked pretty good. They kept my vehicle from bottoming out when towing my 5th wheel camper. They also helped to avoid bucking and chucking upon acceleration. In addition to these though I also purchased RAC rear suspension enhancement springs but having towed with them yet. Hoping for some improvement in general handling.


This is what was needed to keep the truck level when the 5th wheel camper is attached. Works great better ride. 22Chevrolet HD DURAMAX. Camper is a 40 ft. 5th wheel

2015 Chevrolet Silverado 2500

My order arrived 4 days early, WOW. I did use 2 flat blade screw drivers to remove the old bumpers. When I installed the new Sumo Springs I put a little liquid soap on the top edges, this helped pop them in. I also used a piece of 2X4 to help push them in, and quickly released the floor jack and this seated them in fully. Quick install took about 20 min. I have less than 1" at the bottom. Unloaded ride is same as before. With my trailer attached (1200 LBS hitch weight) the short test drive I felt much better control and less bounce. Very happy with product and etrailer. THANK YOU!

Robert V.


Still working great, very happy with this product.


Received order on time and no issues. The product however does not fit my 2022 Chevy 2500HD, the head of the Sumo spring that fits in the pocket on the truck frame does not clip in over the tabs in the cup, looks like the Sumo spring has to much material for it to seat. Tried soapy water and even tried Fluid Film to get it to seat. No rust in the cup. Put original bumps back in and will return these. Nice concept, no joy.


Works well to provide support with my 5th Wheel trailer. Helps with travel on the springs

2015 Chevrolet Silverado 2500

Good piece of gear, works great supporting my new grand design 5th wheel. Installing was easy, only information I can pass is the 2x4 was not enough to seat the spring, had to add another 1/2 piece of wood to help seat the spring inside the cup..

George W.


Great, after 1 year the spring is still doing its job. No issues no complaints

2024 Chevrolet Silverado 2500

Took a chance on purchasing a set of SumoSprings that were listed as used and at a good discount. Had an issue with one seating well on my 2024 Chevy 2500. This may be why it was “used” and returned. Eventually got it to seat. Hopefully it stays in place and does not come loose while going down the road. In a month or so I will update this review if it will allow me to do so. This is the third set of SumoSprings I have purchased and used on various vehicles. Over all so have been pleased with the products as well as etrailer.


Easy install! The most time consuming part is getting tools together! I found that prying with a large flat-blade screwdriver worked best to remove the old bump-stops.
There's about a 1/2" gap between the Sumosprings and the axle with B&W 5th wheel hitch installed but no trailer, so no change in ride when "empty". I haven't tested the Sumosprings with my 5th wheel hooked up yet.


Improved load carrying and reduced porpoising but introduced lateral sway when compressed as can be seen on videos


Sumo springs really helps on heavy load situations & helps the ride as well. Easy to install, does everything the company said & what I expected it to do. Etrailer ,their staff with their expertise & knowledge of the products as well as with tutorials , pictures & videos makes me come back to purchase products that they distribute.

Arthur J.


Good so far. It does what I expected it to do, additional support for the heavy loads I’m carrying & not noticeable when unladen.


Barely did anything that I was expecting. Did not help with the truck squat and therefore did nothing to minimize the fifth wheel bucking.

Etrailer Expert

Brooke M.


You may like having airbags better. Part # F2613 if you have two wheel drive or part # F2613 for four wheel drive from Firestone is a great place to start. You are able to adjust the amount of support depending on if you are hauling or not. You wont have to uninstall anything when the bags arent needed and the quality of the ride wont suffer.


Great stability when my pickup camper is on , acts like a heavy duty sway bar keeping my truck flat on curves. Also helps leveling with heavy loads on.


Very good but I had to trim it to fit properly. Still fully satisfied

Ram 3500

I added helper springs to my 3500 chev and between the over loads springs and the sumo 1500 springs handls the 2800 pound king pin weight on my 35 foot 5th wheel AWESOME.

2015 GMC 3500 HD

The application was straightforward... though prying out the OEM jounces and applying the new ones were more difficult than expected.

Harry and Harriet Homeowner can install this in their garage without a lift. Jacking the weight off the tires and supporting the frame gives you more room to work. Using a 2x4 to aid in compression and seating the SumoSpring REALLY helped.

The final result is excellent on our 2015 GMC 3500HD.


They made a huge difference when pulling my 37' fifth wheel camper. Easy to install on 2016 Chevy 2500HD vs. dealing with air bags and on-board compressors


Run for 1year now and they are fantastic! They stabilize the ride under heavy load. Compensate when the overloads are under heavy stress. An excellent option for those who don't quite need the whole air ride suspension.

Chevrolet Silverado

They helped a little on my 2500 hd Silverado but,wasn't what I needed. I am now going to get Sumo springs for my 38ft 5th wheel .

2015 Chevrolet Silverado

2015 chevy Silverado 2500 HD. installation was as easy as advertised, working well for me.


Great set of custom helper springs. A small problem with the temp in Mich. at 0* , warmed them up indoor over night, using a 4/6 all is well. Supper instructions from Sumo Springs, enjoyed the job, Thanks for the usual fast shipping, Gil Ruehmeier


Removal of the old and installation of the new was fairly straight forward. However, you do need to be a little more creative on the installation side. I followed the instructions several times before deciding to drive with the 2x4's in place until the springs actually seated. I knew when I heard the pieces fall out. I would suggest not driving on a busy road during this portion. I give the install about a 3.

2021 Chevrolet Silverado 2500

Easy product to install and works as intended by leveling out the rear of my 2021 Chevy 2500HD pulling my 5th wheel. Ride difference was improved as well.

2018 Chevrolet Silverado 2500

Great service and fast delivery for the parts we needed for our truck. The Sumos and the equalizer hitch are a great addition to our truck when pulling our heavy travel trailer. Thanks guys for everything.

2014 Chevrolet Silverado 2500

fast delivery, easy install, made a better load ride pulling my 5th wheel than the stock , kind of pricey

Show More Reviews

See what our Experts say about this SuperSprings Intl Vehicle Suspension

  • 2022 Chevy Silverado 2500HD SumoSpring Recommendation for Towing a Trailer with Weight Distribution
    We have 2 different SumoSpring kits that fit your 2022 Chevy Silverado 2500HD: - 1,500 lb Capacity # SSR-207-47 - 3,000 lb Capacity # SSR-203-40-2 With an ideal weight distribution system you won't need any kind of suspension help so I recommend choosing the one that best suits your needs when you aren't towing. If you only plan on light duty loads in your truck bed then the 1,500 kit is the better option, but if you plan on loading up your truck bed pretty heavily then I recommend...
    view full answer...
  • Difference Between SumoSprings Rebel and Solo Suspension Kits for 2024 Chevy Silverado 2500
    Hey Justin, for your 2024 Chevy Silverado 2500 the big difference between the SumoSprings Solo part # SSR-207-47 and the Rebel part # SSR-203-40-2 is the weight capacity of either. The Solo can provide up to an additional 1,500 lbs of support and the Rebel 3,000 lbs so you'll get a lot more with the Rebel. So if you'll be towing a lot of weight closer to the capacity of the truck go with the Rebel but if you won't really get close to the capacity it would be better to go with the Solo....
    view full answer...
  • SumoSprings or Timbrens for a 2022 Chevy Silverado 2500
    For your set up I recommend going with the SumoSprings Rebel Custom Helper Springs item # SSR-203-47-2. I never recommend Timbren's unless they are being used on a work body truck because they will significantly affect the ride quality of your 2022 Chevy Silverado 2500 when you are not towing. The SumoSprings have a 5,000 lbs capacity and only compress when a load is placed on the rear of your truck. These springs attach at both the top and bottom so they allow unlimited travel between...
    view full answer...
  • Recommended SumoSprings for a 2018 Chevy Silverado 2500 Pulling a 5th Wheel Trailer
    The best SumoSprings for your 2018 Chevy 2500 are going to be the SumoSprings Rebel Custom Helper Springs item # SSR-203-47-2. These have a 5,000 lbs load leveling capacity and are compatible with in-bed hitches. This is a two piece system so when your Silverado is not loaded down from the weight of your 5th wheel trailer you won't notice them. I have linked an installation video below to help you get these helper springs set up.
    view full answer...
  • Recommended Helper Spring Option for 2021 Chevy Silverado 3500 Dually
    You're experiencing the harsher ride because the overload springs engage when you tow, so what you're really needing to do is add some support to either prevent or delay the overload springs from engaging. I spoke at length with my SuperSprings representative, who tells me that the # SSR-203-40-2 would significantly improve your ride quality while towing, but using the product could possibly make your ride a bit more harsh when you're not towing. You can determine if the # SSR-203-40-2...
    view full answer...
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  • Rear Suspension Helper Springs for a 2018 GMC Sierra 2500 Towing a 5th Wheel Trailer
    Hello, I will be happy to help you select some helper springs to improve the ride and level out the truck when you are towing. Timbren springs are an easy install but they will make the ride stiffer when you are not towing. The similar SumoSprings Solo # SSR-207-47 will also level out the truck but will not be as stiff when not towing compared to the Timbren springs. Another option to consider is RoadActive Suspension # RAS3611-HD. Installation is easy with this kit as well. It will...
    view full answer...
    Image 1 for
  • SumoSprings Helper Springs for 2015 GMC Sierra 2500 Pulling Loader Trailer With In Bed Fuel Tank
    The SumoSprings Solo Custom Helper Springs # SSR-207-47 are about 5" tall and will leave you with a 1-2" gap when installed on the 2015 GMC Sierra 2500 that is unloaded. I would not recommend using this kit for your situation as I do not feel it will give you the amount of support you need with the heavy trailer and fuel tank. The SumoSprings Rebel Custom Helper Springs # SSR-203-40-2 are a great option as they will give you a decent ride quality both when loaded and unloaded. They are...
    view full answer...
  • Recommended Suspension Enhancement for 2015 Chevy Silverado 2500HD Towing Fifth Wheel Trailer
    For your 2015 Chevy Silverado 2500HD towing a 12,000 lb fifth wheel trailer I recommend the SumoSprings Solo Custom Helper Springs # SSR-207-47, because Timbrens will make your ride a bit rougher than the SumoSprings. The SumoSprings work by progressively compressing based on the weight of the load compared to the rubber Timbren springs, which is why they do not give you as bumpy a ride. The SumoSprings also do not require any type of drilling for installation as you can see in the linked...
    view full answer...
  • Will SumoSprings Solo Helper Springs SSR-207-47 Fit 2018 GMC Sierra 3500 Denali 4WD Pickup
    Yes, the SumoSprings Solo Custom Helper Spring kit # SSR-207-47 fits your 2018 GMC Sierra 3500 Denali 4WD pickup. These jounce springs will usefully stiffen your rear suspension with progressive resistance when it is under load but they will not change the normal ride quality. Their 1500-lb leveling capacity at 50 percent compression means they can give you worthwhile suspension support when you need it without causing drastic changes to the feel of the vehicle. Installation details...
    view full answer...
  • Why is 2 x 4 Lumber Included in Parts List for SumoSprings Custom Helper Springs # SSR-207-47
    You ask a good question. Indeed, a "short length of 2 x 4" is listed in the installation instructions as one of the tools needed to install the SumoSprings Custom Helper Springs # SSR-207-47, yet this item is not referred to in any of the installation steps. My technical contact at SumoSprings advised that the 2 x 4 is recommended to help get their springs fully seated in the cups that held the factory bump stops. The idea is to place one end on the top of the axle and the other against...
    view full answer...
  • Will SumoSprings Solo Custom Helper Springs for 2021 GMC Sierra 2500 Reduce Sag When Towing
    Yes the SumoSprings part # SSR-207-47 are a fit for your 2021 GMC Sierra 2500HD 4WD and will do a great job eliminating the sag you have at the rear of the truck when towing.
    view full answer...
  • Comparing SumoSprings and Timbrens for a 2017 GMC Sierra 2500
    The main difference between the SumoSprings Solo Custom Helper Springs part # SSR-207-47 and the Timbren Rear Suspension Enhancement System part # TGMRCK25D for a 2017 GMC Sierra 2500 is the hardness. The Timbrens are much harder than the SumoSprings therefore will provide more support. That said, this also means that the ride quality while loaded will be less desirable. The best option really just depends on which you will be doing more of, if you will be towing mostly then go with the...
    view full answer...
  • Which SumoSprings Rear Helper Springs Are Best For A 2022 Chevrolet Silverado 3500?
    As you mentioned not towing all the time, I do not recommend going with the SumoSprings Rebel # SSR-203-47-2. This will be far to heavy duty as is intended more for full time towing or an in-bed camper. Your suspension will end up being affected pretty severely when not under load, so I suggest one of the lower rated options. Specifically the SumoSprings Rebel # SSR-203-40-2. This is also a two piece design, which I do like, is rated up to 3,000 pounds of carrying capacity (at 50% compression)....
    view full answer...
  • What Rear Axle Springs do You Recommend for My 2022 Chevrolet Silverado 2500?
    For your 2022 Chevy Silverado 2500 4x4, a great set of rear SumoSprings is the Solo Custom Helper Springs - Rear # SSR-207-47. These springs will not only get you 1,500 pounds of capacity, but they also do not require any additional maintenance once installed. The SumoSprings also help reduce sway and keeps your tuck level when hauling.
    view full answer...
  • What SumoSpring Kit Is Recommended For The 2020 Chevy Silverado 2500.
    If you are going to be hauling a conventional trailer or something in your truck bed I suggest the SumoSprings Solo Custom Helper Springs - Rear Axle # SSR-207-47. They are maintenance-free - no tubing to run or air pressure to monitor like with air springs and they work independently from each other to compensate for off center loads. If you will be hauling a gooseneck or a fifth wheel I recommend the SumoSprings Rebel Custom Helper Springs - 2 Piece - Rear Axle # SSR-203-47-2. It offers...
    view full answer...
  • SumoSpring Kit Recommendation For A 2022 Chevrolet Silverado 2500
    For your 2022 Chevrolet Silverado 2500 SumoSprings Solo Custom Helper Springs # SSR-207-47. These springs have a 1,500 lbs capacity and help minimize sway and absorb bumps and shocks. The durable composition these springs are made up of resist damage caused by oils, road salts, and UV rays, as well as; Working in extremely cold temperatures (-25°F); to extremely hot temperatures (200°F).
    view full answer...
  • What is the Difference Between the Sumo Springs Available for a 2022 Chevy Silverado 3500
    Yes, there are a several options to add Sumo Springs to your 2022 Chevy Silverado 3500 and you'll generally want to choose based off the weights of the payloads you typically carry in your truck bed or the size of the trailer you're towing. It should be noted that these don't increase the payload or towing capacity, they'll only offer support within the capacities of your Silverado. The SuperSprings Sumo Springs Solo Rear Chevrolet Silverado 3500 Suspension Kit for Trucks # SSR-207-47 are...
    view full answer...
  • Height of Sumo Spring # SSR-207-47 For 2015 Chevy Silverado 2500HD
    The # SSR-207-47 SumoSpring is 5 inches tall. Usually, the underside of the spring would sit about 1-2 inches above the axle. For crew cab models, the extra weight of the cab would cause the rear to settle a bit more, with the bottom of the spring sitting just above or right on the axle.
    view full answer...
  • Comparing Timbrens and SumoSprings for a 2017 Chevy Silverado 3500
    Yes, the Timbren Rear Suspension Enhancement System part # TGMRCK25D and the SumoSprings Solo Custom Helper Springs part # SSR-207-47 are confirmed to fit your 2017 Chevy Silverado 3500. Both products will help to reduce sag, improve stability, and increase the existing suspensions wear life. Generally speaking, Timbrens are going to give you more support but SumoSprings will have a smoother ride. Of these two options, I recommend using the Timbrens as these will be more inline with your...
    view full answer...
  • What is the Weight Capacity of the SuperSprings part # SSR-207-47
    When at 50 percent compression the Super Springs part # SSR-207-47 can provide 1,500 lbs of additional capacity. This will give you additional suspension support and will also allow for a smoother ride quality unloaded than the Timbren. You should note that these kits do not allow you to add their capacity to your truck capacity to get a new, higher capacity. These just provide additional support to help you carry your current capacity safer.
    view full answer...
  • Fit of SuperSprings Sumo Spring Kit # SSR-207-47 on 2015 GMC Sierra 2500 4x4 Truck
    I've just checked with SuperSprings, and have found that the # SSR-207-47 Sumo Springs kit you asked about does indeed carry over to the 2015 GMC Sierra 2500 truck, both 4x2 and 4x4 models.
    view full answer...
  • Sumosprings Recommendation for 2012 Chevy Silverado 3500HD Towing Travel Trailer
    If your suspension is going up and down 2-3 times after hitting a bump you most likely need to replace the shocks of your truck. That will slow the rebound down quite a bit and should prevent the suspension from basically bouncing like you described. For suspension enhancement the SumoSprings kit part # SSR-207-47 will provide you with an additional 1,500 lbs of spring capacity at 50 percent compression. It will not give you additional capacity. This will greatly reduce how far the suspension...
    view full answer...
  • Timbren or SumoSprings Recommendation for a 2015 Chevy Silverado 2500
    Because the Timbrens like part # TGMRCK25D that you referenced have a reputation as having kind of a harsh unloaded ride quality I would recommend the SumoSprings part # SSR-207-47 since you will get the same support without as harsh of a ride when the vehicle is unloaded. I attached an FAQ on Timbrens for you to check out as well.
    view full answer...
  • Rear Suspension Enhancement Helper Springs for a 2016 Chevy Silverado 2500 Towing 5th Wheel Trailer
    Timbren Rear Suspension Enhancement System # TGMRCK25D will prevent bottoming out but it stiffens up the suspension so some of those bumps may be more jarring than before. And the unloaded/not towing ride will feel stiffer as well. Ideally to soften things up a little you would go with air springs such as # F2709. This will allow you to adjust how stiff or soft the ride is. This model air spring is compatible with 5th wheel hitch frame brackets as well. I have linked a video showing an...
    view full answer...

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