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SumoSprings Solo Custom Helper Springs - Rear Axle
Part Number: SSR-107-54
In Stock
$320.99
1971 Chevrolet Corvette
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- Reviews (2551)
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SuperSprings Intl Vehicle Suspension - SSR-107-54
Highlights
- Custom Fit for Your Vehicle: Mounts to existing attachment points
- 2,800-lb Load Support: Keeps your vehicle level and stable when carrying heavy rear loads.
- Smoother Ride Over Bumps: Cushions shocks and road vibration for a more comfortable drive.
- No Maintenance Needed: No tubing or air pressure to monitor, just install and go.
- Better Handling in Turns: Independent springs help reduce body roll and off-center sag.
- Durable in Any Weather: High-density urethane resists oil, salt, UV rays, and extreme temps.
Features to know about
Stay Level and Confident Under Load: 2,800-lb Rear Suspension Support
A heavy load in back can make the rear sag and throw off steering and braking. These SumoSprings Solo helper springs add up to 2,800 lbs of support at 50-percent compression to keep your ride level and steady. They help your factory suspension handle the extra weight, maintain proper headlight aim, and reduce bottoming out so you stay in control when hauling gear, towing, or carrying uneven loads.
Smooth Out Every Mile: Progressive Load Control
The microcellular urethane springs compress in stages to match the weight you’re carrying. Light loads engage softly for a smoother ride, while heavier loads can compress the springs by as much as 80 percent for firm, stable support. The material acts like a shock absorber to cushion bumps and dampen vibration, keeping your ride comfortable whether you’re loaded down or running empty.
Stay Steady in Crosswinds and Turns: Independent Spring Action
Each spring works on its own to keep both sides balanced when the road surface or load isn’t even. That independent action reduces body roll during sharp turns and levels things out when side winds or passing trucks push against you. The result is a planted, stable feel when pulling onto uneven ground or cornering with a full load.
Built Tough for Real-World Conditions: Maintenance-Free Design
These high-density microcellular urethane springs are made to handle real work without upkeep. They resist damage from oils, road salts, and UV rays, and they perform in temperatures from -25 F to 200 F. With vertical compression that limits expansion to the sides, they fit tight spaces without rubbing nearby parts. Installation is simple with no drilling required—and once they’re on, there’s no air pressure to monitor or tubing to run.
Specs
Weight and Capacity
- Weight capacity (at 50-percent compression): 2,800 lbs
Warranty
- Limited lifetime warranty
- 30-Day satisfaction guarantee
SSR-107-54-1 SuperSprings Sumo Springs Solo Rear Vehicle Suspension Kit
This Product Fits The Following Vehicles
- 2008 - 2008 Four Winds 5000 Motorhome 21RB - Ford
- 2007 - 2009 Winnebago Access Motorhome 22B
- 2007 - 2007 Winnebago Access Motorhome 24V
- 2008 - 2012 Winnebago Access Motorhome 24V - E-350
- 2008 - 2012 Winnebago Access Motorhome 24V - E-450
- 2007 - 2007 Winnebago Access Motorhome 26A
- 2008 - 2008 Winnebago Access Motorhome 26A - Ford
- 2011 - 2012 Winnebago Access Motorhome 26Q
- 2011 - 2012 Winnebago Access Motorhome 26QP
- 2008 - 2008 Winnebago Access Motorhome 28P - Ford
- 2007 - 2007 Winnebago Access Motorhome 29P
- 2007 - 2010 Winnebago Access Motorhome 29T
- 2008 - 2009 Winnebago Access Motorhome 29T - Ford
- 2007 - 2012 Winnebago Access Motorhome 31C
- 2008 - 2009 Winnebago Access Motorhome 31C - Ford
- 2011 - 2012 Winnebago Access Motorhome 31CP
- 2008 - 2012 Winnebago Access Motorhome 31J
- 2011 - 2012 Winnebago Access Motorhome 31JP
- 2009 - 2011 Winnebago Access Motorhome 31N
- 2011 - 2011 Winnebago Access Motorhome 31NP
- 2012 - 2012 Winnebago Access Motorhome 31R
- 2012 - 2012 Winnebago Access Motorhome 31RP
- 2012 - 2012 Holiday Rambler Aluma Lite Motorhome 23RB
- 2011 - 2011 Holiday Rambler Aluma Lite Motorhome 23RB - Triton
- 2011 - 2011 Holiday Rambler Aluma Lite Motorhome 28PBS - Triton
- 2012 - 2012 Holiday Rambler Aluma Lite Motorhome 31SFD
- 2011 - 2011 Holiday Rambler Aluma Lite Motorhome 31SFD - Triton
- 2012 - 2012 Holiday Rambler Aluma Lite Motorhome 31WBS
- 2011 - 2011 Holiday Rambler Aluma Lite Motorhome 31WBS - Triton
- 2005 - 2007 Winnebago Aspect Motorhome 23D See All Vehicle Fits
Ratings & Reviews
4.7
2551 reviews
by:
Mark
05/09/2017
2014
Ford
Van
Helped to stabilize my motorhome and level it up.
by:
Michael
05/09/2026
2025 Promaster 2500 159” wheelbase. Backed the van on couple 2” X 6 “ easier sliding under. Sprayed PB Blaster on top of bumper spring, using a 16” Channel Lock, easy off with the old. At that time I jacked the rear end to allow clearance. One side at a time. Took longer for set up then the job. I used the long bolt with two spacers. Have not drove yet, though looking for great results.
by:
Justin
08/29/2026
2020
Jeep
Gladiator
This only pertains to the order, shipping speed, and install as I have not put a heavy load on these sumo Springs yet but I feel like that's a foregone conclusion based off the reviews already. The ordering process, the shipping, and the installation was unbelievably easy. I kept rereading the instructions thinking this can't be right because it was so simple. I looked at the YouTube video and realized it is that simple! So happy with the ordering process, the quality of the initial product I opened, and how simple it was to put on the jeep.
Claire H.
9/1/2026
That is the beauty of SumoSprings! Super easy to install and once they're on you can forget they're there! Are you planning on towing something with your Jeep that you want extra support for?
Claire H.
9/2/2026
@Justin That sounds like a good plan! These SumoSprings plus the sway bar should be more than enough to handle the weight of your truck bed camper.
by:
Randall
08/11/2026
2013
Jeep
Wrangler Unlimited
I put these on a 2013 Jeep JK (not lifted) that tows a 3000 lb trailer in rough terrain; Total game changer.
These replaced the anemic factory stops (which had completely disintegrated) and make it impossible to 'bottom out' on the dips and holes that use to beat up the suspension. I got nearly all of my vertical travel back and the vehicle now sits almost level under high tongue load.
They go on pretty easy. I suggest sliding in one side, and then using a wooden dowel and hammer to pop the other side in the stock receiver cup.
Highly recommended. These are a MUST if you are towing a trailer (with a medium sized SUV) of any significant weight or if you just want to be able to bounce hard without bottoming out your suspension. I am likely going to get the front suspension version now as well.
Wish I knew these existed sooner.
These replaced the anemic factory stops (which had completely disintegrated) and make it impossible to 'bottom out' on the dips and holes that use to beat up the suspension. I got nearly all of my vertical travel back and the vehicle now sits almost level under high tongue load.
They go on pretty easy. I suggest sliding in one side, and then using a wooden dowel and hammer to pop the other side in the stock receiver cup.
Highly recommended. These are a MUST if you are towing a trailer (with a medium sized SUV) of any significant weight or if you just want to be able to bounce hard without bottoming out your suspension. I am likely going to get the front suspension version now as well.
Wish I knew these existed sooner.
Heather A.
8/12/2026
Wow thank you for the glowing review Randall. It sounds like once you got them installed they are working out great. That sunset is gorgeous, where were you in this photo?
by:
Chad
05/18/2026
2022
Ford
F-150
Love them! The truck barely even squatted, had two dirt bikes, and a generator in the bed as well! It handles the bumps and sway great
Gwendolyn Y.
5/20/2026
Looks like you were about to head off somewhere fun, Chad!
by:
Morgan
07/14/2026
Put these on a Jeep Gladiator to haul a motorcycle to Sturgis. Kept everything level, good ride and stability. Highly recommend.
by:
Warren
10/27/2026
2016
Toyota
Tundra
It arrived pretty promptly about 30 minutes later I had him installed. It took me longer to find the proper Tools. Never had to remove the tires or wheels the only time I had to jack it up was to put the helper springs and screw them down very easily install
by:
Paul Hornaday
02/20/2026
2000
Nissan
Leaf
Great product! Bought these for my 2000 7.3 f250. Didn't want something that is constantly active like ras or hellwig since my leaf springs are new and rated for 4k pounds. Installed these in 1 hr super simple only hard part was the factory bump stop on driver side was a pain. Didn't install the puck they give due to height of truck and I knew more or less at what point I wanted them engaging. I haul cattle to shows/ auctions or between pastures with my 24ft big bend and these things actually provided a smoother ride in my truck loaded then unloaded.they do a great job with the added support and are better than an overload spring with handling sway and providing a smooth ride loaded. Just wish I could use the 3k pound rated ones on this truck and my dually but doesn't fit if you have a gooseneck sadly so will probably have to go with timbs on the drw. Over all great product can't speak to longevity but solid for the time being. And customer service with this company is excellent if you have a question or problem they're on top of it...hope they pay them as well as the reputation they're building for them.
by:
Jeff B
04/22/2026
Very easy installation. The improvement in handling is phenomenal.
Gwendolyn Y.
4/23/2026
Thanks for the awesome feedback, Jeff! Love hearing that the install was a breeze and that you noticed such a big difference in handling, that’s exactly what you want after the upgrade. Really appreciate you sharing the photos too, it’s always fun to see the comparison.
by:
Christopher
01/06/2026
2024
Chevrolet
Silverado 1500
I put a set of 47s on my Silverado 1500 and towed my dump trailer that weighed 6000 pounds the way I had it loaded for 50 miles on all kinds of roads and it worked well. I didn’t use the spacers and the truck still rides like it did before the install.
Gwendolyn Y.
1/8/2026
Glad the Sumos are helping make your loads easier to tow!
by:
Michael Batts
02/13/2026
Jeep Gladiator Mojave - swapped out the rear stock bump stops with these. High quality parts. Just jack up the truck enough to give you room to work with and put in your jack stands, no need to remove the wheels. I look forward to seeing how they do with towing! Hopefully I can update my review here afterwards. Check out the gap difference in the pictures. Should touch sooner during normal drive conditions and hopefully help reduce some trailer squat and help towing to be smoother.
by:
Richard
02/10/2025
Opted for the Blue 1000lb Sumo's w/spacer over the 1500lb Black ones. 1500 Silverado Max Tow & reduces squatting by 2" on a 1000lb+ tongue weight. Ride is still good, but you can feel the Sumo's engage over large dips or bumps which is not an issue for me.
Richard
2/12/2026
No issues. Towed a 27 Airstream around 4k miles & its all good.
Lazer S.
2/12/2026
@Richard Nice! Glad you are still happy with them! Was that all one trip, or multiple different trips?
by:
Mike
07/21/2024
I got the springs installed last week and wanted to have a drive time before I wrote the review.
The height of the springs are perfect for my 2016 Tacoma, They keep the truck stable and nearly eliminate the body roll I had before installing them. I am heading to the mountains in a couple weeks, so I will update the review when I get back. That way I will know for sure the body roll is gone and the truck is stable on the winding mountain roads.
The springs installed in no time at all and since I had the rear end apart, I decided to add the leveling blocks at the same time, to keep the truck from squatting with the gear I haul around with me.
The guys at etrailer are great. And while I did not call them to discuss this item, they have been very helpful in the past with all my questions.
Below are pictures of before, a couple comparisons and after. Sorry if they come out sideways.
These Sumo Springs were a great addition to my Tacoma and well worth the money, IMHO.
The height of the springs are perfect for my 2016 Tacoma, They keep the truck stable and nearly eliminate the body roll I had before installing them. I am heading to the mountains in a couple weeks, so I will update the review when I get back. That way I will know for sure the body roll is gone and the truck is stable on the winding mountain roads.
The springs installed in no time at all and since I had the rear end apart, I decided to add the leveling blocks at the same time, to keep the truck from squatting with the gear I haul around with me.
The guys at etrailer are great. And while I did not call them to discuss this item, they have been very helpful in the past with all my questions.
Below are pictures of before, a couple comparisons and after. Sorry if they come out sideways.
These Sumo Springs were a great addition to my Tacoma and well worth the money, IMHO.
Mike
7/31/2025
The springs are working exactly as expect. I have need up to the mountains numerous times and to Monerary to the Sea Otter bike fest. They have reduced the body roll and helped keep the truck stable on the mountain roads or when loaded down for camping. Im very pleased I added these Sumo Springs to my Tacoma.
Jon G.
7/31/2025
@Mike We LOVE to hear reports like this!
I've never been to the Sea Otter bike fest, but I looked it up online and it looks pretty cool! How many times have you gone to it?
by:
Allan
10/25/2026
2016
Chevrolet
Silverado 1500
Have Nissan NV 1500 (transit van).Loads and trailers were the problem-along with the constant "slouch" look-with no really heavy load on it. Hated that!
These used with "add-on leaf springs" made a world of difference.
Bumps being felt, are there, but nothing like before. These two things along with new shocks (all for back),has helped out so much!
So, the bumps have almost faded to "nothingness". Now granted, I have not hit a massive pothole, yet. I try to dodge those anyhow!
Components work great together!
These used with "add-on leaf springs" made a world of difference.
Bumps being felt, are there, but nothing like before. These two things along with new shocks (all for back),has helped out so much!
So, the bumps have almost faded to "nothingness". Now granted, I have not hit a massive pothole, yet. I try to dodge those anyhow!
Components work great together!
by:
Billy
04/23/2026
Got them installed no issues the reason for 4 stars is one side touches top of axle the other side does not no one could tell me if this was right or wrong also haven't pulled 5th wheel yet to feel the ride or handling so we will see thanks
by:
Cory
09/12/2025
2024
Ford
F-250 Super Duty
Definitely helps with squat on '24 F250 from boat trailer tongue weight. These do come with a plate to avoid uneven contact or wear.
I mounted using all spacers , stock is same unless speed bumps or large dips, u feel the stiffness/contact of sumo as expected. May take one spacer out .
Super easy to install , better than leaking bags.
Time will tell how they last
I mounted using all spacers , stock is same unless speed bumps or large dips, u feel the stiffness/contact of sumo as expected. May take one spacer out .
Super easy to install , better than leaking bags.
Time will tell how they last
Lazer S.
9/16/2025
Glad to hear they are helping, Cory! If you are feeling them going over speed bumps, I think taking one of the spacers out is a good idea. Especially if that is happening when you are unloaded. Speaking of which, what are you towing?
Lazer S.
9/23/2025
@CoryS Nice! I've been on a couple center console boats that moved faster than they probably should have! Grew up on and around boats in San Diego. There were some very "iffy" things done to make them faster. : P
by:
Albert
07/12/2024
2021
Nissan
Titan
I had installed this model SumoSpring on my 2019 4Runner and had great results when towing the camper I had at the time. They greatly reduce the bounce when going over dips in the road at highway speeds. Now I have a 2021 Titan and a bigger heavier camper. I expect the same great results on the Titan. Installation was pretty straight forward and took about a half hour. The size difference between the OEM bump stops and the SumoSprings alone should give a better ride when towing my camper.
Albert
7/16/2025
Still working like new. So much better than the factory bump stop.
by:
Austin
07/29/2026
Product is great, exceeded my expectations. Install is simple and straightforward. It’s a night and day difference in both the body roll and the handling small bumps all the way up to off-road conditions.
Christopher H.
8/4/2026
Happy to hear the # SSR-118-54 was a simple install and is working well for you. This is a great system!
by:
John, Jupiter Fl.
10/19/2026
I bought a 2027 RAM 1500 to tow my 20' 5000lb Forest River. Easy to install. I did it in my driveway in 1.5hrs. Some of the bolts were dificult to access due to mufflers etc but a short wrench worked well. When I first hooked up my trailer I had 4" of rear bed setelment. With springs installed I had less than 2". Front lift is about 1/2". Did not compromise driving comfort and appeared to dampen trailer "flex" on RxR tracks etc. My right handled very well on a trip from S Florida to N Georgia on Interstates and secondary roads.
Andrew N.
10/21/2026
Hey John, thanks so much for the detailed response and photos. That really helps other folks on the page. I'm glad install went well and you're liking them! I have these sumosprings on my Nissan Titan and it's a huge upgrade for towing!
by:
Michael
06/17/2026
Easy to install and immediately noticed an improvement in ride stability and towing with my Gladiator. If only I had found these sooner.
by:
Dan
09/19/2026
2020
Ford
Ranger
Had them installed and hooked up the trailer. Much improved support from sag due to tongue weight. Kept the vehicle very level to within 3/4" higher than front. Perfect rake and comfortable during unloaded or loaded driving. OEM bump stops really didn't do anything in comparison. Shop had to work a bit harder to get OEM stops off but install of these SomoSprinhs was simple. Glad I went this route.
by:
Tina
09/22/2026
I had the SumoSprings Solo Custom Helper Springs installed on my 2020 Nissan NV2500 camper van (rear axil) about 4 months ago and have been very happy with how they have performed.
by:
Kevin
07/19/2026
Installed these right before a long road trip, and were impressed with how much the ride improved. Opted not to include the spacers, which has worked out fine. While not towing have not noticed any change to the ride, which is good. When towing the steering has a solid grip on the road now (sometimes felt a little loose before installing these) and no more issues with 'porpoising'. We drove across a several mile long bridge in the Bay Area that likely would have been a roller coaster ride previously, and had no issues. Quick and easy to install.
Kate F.
7/21/2026
One of my favorite things to recommend Kevin, the feedback is always so great on what a difference they make! What are you mainly towing that needed the extra support?
by:
Mike B
04/23/2024
I bought and installed the 1000lb Sumo Solo springs to help alleviate rear end squat on my 2024 GMC Canyon Denali when pulling my boat. My boat trailer has a long mono tongue with no weight distribution installed. The boat weighs in at about 5500lbs, the truck fender lip measures 38” high unloaded, once I dropped the hitch down on the ball and the Sumos picked up the load, the fenders measured 36.25” equating to an inch and 3/4 squat. Empty the Sumos have an apx gap of 7/8” above the frame rails. The Sumos were recommended over the Timbrens for my situation of infrequent towing with this truck and to maintain the best ride possible when not towing. So far my ride is virtually unchanged when empty and feels controlled when towing. Installation is straight forward but the instructions could be a little clearer with a diagram showing the intended location of the springs. Luckily an etrailer customer had already done the install and provided some pics so there was no question. I chose to remove the tires to have good access and I’d do it again this way. I supported the truck with a jack stand under the receiver. IMHO the proper method to locate the over frame upper clamp brackets is to push the forward clamp as far forward until it contacts the bed stiffener and you’ll be in the correct location then let all the hardware hang to position itself, tighten as required and enjoy.
Mike B.
4/24/2025
Excellent, I also tow a 6x12 cargo trailer which the Sumos do a great job of maintaining a level ride. I also installed Sumos front and rear on my 32 Tiffin motorhome. It utilizes the Ford F53 chassis and I believe they compliment that chassis well. Im definitely a big Sumo fan.
by:
David J
05/16/2025
Chevrolet
Silverado
I was surprised at how much of a difference these actually make. I bought them based on some videos of others using them, but wasn't sure if they would actually make much difference in my situation. I tow a 6800lb trailer with a Silverado 1500. With the tongue weight of that trailer, the rear of the truck doesn't drop all that much and I wasn't sure if replacing the bump stops was even necessary, but when I'm on roads with "heaves" and especially bridges where porpoising can be a problem, these SumoSpring certainly help. You probably won't notice some huge drastic change, but it's just enough to matter and even out the ride to a noticeable degree. Also, they're pretty easy to install (and I'm only barely handy when it comes to this stuff.)
Gwendolyn Y.
5/16/2025
I'm glad that the Sumos helped with the handling, David! And I think your pretty handy if you can get these installed :)
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view full answer... - Best Anti-Sway for 2006 Ford E-450 Class C MotorhomeI assume what you have is a Class C motorhome, and the SumoSprings Solo Custom Helper Springs # SSR-107-54 will help, but they won't stop the back-and-forth rocking completely, they will offer some support. Air bags like the Air Lift LoadLifter 5000 Air Helper Springs # AL57242 will also fit and would be helpful but are not the best way to stop sway on a motorhome. Instead, for a motorhome like yours on a 2006 Ford E-450 chassis, the best way to enhance the ride is to add an aftermarket...
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view full answer... - Recommended Rear Suspension Enhancement for a Lexington Motorhome on a Ford E-450 ChassisBoth the Timbren Rear Suspension Enhancement System # TFERSD and the SumoSprings Solo Custom Helper Springs # SSR-107-54 would be good options for your Lexington Motorhome on a Ford E-450 chassis. But with the added weight that comes with this being a Motor home on the chassis, I would recommend going with the Timbren Rear Suspension Enhancement System # TFERSD because they have double the weight capacity of the SumoSprings Solo Custom Helper Springs # SSR-107-54. The Timbren Rear Suspension...
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Info for this part was:
Edited by:
Leah B
Expert Research:
Jameson C
Video Edited:
Dustin K
Video Edited:
Jonathan Y
Installed by:
Steven C
Written by:
Mary K
Updated by:
Wilson B
Updated by:
Alex H
Updated by:
Matthew E
Updated by:
Noah M
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Lazer S.
5/13/2026
Glad to hear the install wasn't too bad, Michael! Definitely let us know how the ride is once you take it out for a drive! What are you using your Van for? The tires look pretty beefy.