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  1. Vehicle Suspension
  2. SuperSprings Intl
  3. Bump Stops
  4. Towing/Load Leveling
  5. Standard Duty
  6. Rear Axle Suspension Enhancement
THIS ITEM IS NOT A FIT FOR
2012 Tiffin Allegro Motorhome
SuperSprings Intl

SumoSprings Solo Custom Helper Springs - Rear Axle

In Stock
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$382.99
Vehicle Suspension
Not Confirmed to Fit

2012 Tiffin Allegro Motorhome

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2,800-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-312-54 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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SuperSprings Intl Vehicle Suspension

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

2,800-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.


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, high-density 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): 2,800 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-312-54 SuperSprings Sumo Springs Solo Rear Vehicle Suspension Kit for Trucks

Item # SSR-312-54

Installation Details SSR-312-54 Installation instructions

This Product Fits The Following Vehicles




Customer Satisfaction Score:

Ratings & Reviews

4.7

2235 reviews
5 Stars
(1803)
4 Stars
(303)
3 Stars
(45)
2 Stars
(32)
1 Star
(52)
2,800-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.

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See what our Experts say about this SuperSprings Intl Vehicle Suspension

  • Helper Spring Recommendation for 2016 Ram 3500 With 5th Wheel Hitch
    If you're simply looking for less sag and more support when you're towing your 5th wheel a bump stop replacement suspension helper spring option like the SumoSpring # SSR-312-54 would be a great choice. The SumoSprings won't really come into play until the 5th wheel's pin weight is applied to the rear axle or there's a load carried in the bed of the truck. On the plus side, there's nothing to leak and no maintenance is required. On the down side, the system offers no adjustability, so it's...
    view full answer...
  • SumoSpring VS Timbren for 2017 Ram 3500 for Ride Quality and 5th Wheel Towing Support
    Since you really want a good ride quality the SumoSpring Solo # SSR-312-54 is the way to go. This will give you the support you are wanting without making the ride quality harsh like the Timbrens do. Timbrens provide a lot of support but the ride quality (specifically unloaded) isn't great. The SumoSpring option is a much better balance between support and ride quality so it's what you'll be the most happy with.
    view full answer...
  • Is Timbren Or SumoSprings The Better Option For Occasional Towing?
    Hi Paul! Since you said occasional towing, I am going to steer you away from the Timbren option. They can be pretty rough and you will definitely feel it when you are not towing. If you had a constant load, it would have been an option, but I don't think you will be happy with them. The SumoSprings Solo Custom Helper Springs - Rear Axle # SSR-312-54 will be the much better choice. Yes, it does have a lower capacity than the Timbrens, but I believe they are much better suited to your needs....
    view full answer...
  • Best SumoSprings Kit for Towing a 5th Wheel with a 2020 Ram 2500
    Hey Joe, thanks for reaching out! The only real difference (aside from color) for the SumoSprings Kit # SSR-312-47 and Kit # SSR-312-54 is that the former is rated to help with 1,500 lbs while the latter is rated to help with 2,800 lbs. The 1,500 lb kit will work just fine if your hitch (pin) weight doesn't go over 1,280 lbs, but in your case it wouldn't hurt to get the 2,800 lb kit because that will also help alleviate any sag if you load some cargo up in the bed to haul. Since the SumoSprings...
    view full answer...
  • Can Timbren Kit be Adapted to Go from Ram to Chevy Silverado
    I wish there was a way to adapt them to a different truck but that's just not how they are designed. I think you'll like the SumoSprings # SSR-312-54 better though.
    view full answer...
  • Jounce Spring Style Suspension Enhancement for 2020 Ram 2500
    While we don't carry replacement bump stops that fit your 2020 Ram 2500 we do have jounce spring style suspension enhancement kits that fit your 2020 Ram 2500 like the SumoSprings part # SSR-312-54 which will do a great job providing your truck with additional suspension support.
    view full answer...
  • Comparing Timbren and SumoSprings Suspension Enhancement For 2022 Ram 2500
    The SumoSprings are definitely the best choice for your 2022 Ram 2500. The Timbren will give you a rough ride when unloaded while SumoSprings have a minimal impact on unloaded ride quality. Also, the # TDRTT3500E is a severe service kit. The only reason to add this would be if you're using a slide-in camper or salt spreader. The correct SumoSprings kit will depend on your application. I would choose the option with the lowest capacity that fits your needs. We have the following available: -SumoSprings...
    view full answer...
  • Are Air Bag Helper Springs Or SumoSprings a Better Option For a 2022 Ram 2500?
    The main benefit of the Firestone Ride-Rite Air Helper Springs # F2598 is you can easily adjust the air pressure in the springs using a Compressor System # AL74000 to not only level your 2022 Ram 2500 but also dial in the ride quality. With the SumoSprings you have several options with different weight ratings. 1,500LB # SSR-312-47 2,800LB # SSR-312-54 3,000LB # SS64VR 5,000LB # SS27GR The heavier capacity will cause your rear end to sag less but do understand the higher capacity will...
    view full answer...
  • SumoSprings Helper Springs Comparison For the Rear Suspension On a 2022 Ram 2500
    There are going to be three of the SumoSprings helper springs available for your 2022 Ram 2500. SumoSprings Rebel # SS27GR SumoSprings Solo Yellow # SSR-312-54 SumoSprings Solo Black # SSR-312-47 The Rebel springs will have the highest weight capacity at 5,000lbs. These are going to be best for trucks that are constantly under load. So if you have a trailer that you are always connected to, large tool box or slide in camper these will be your best choice. The Solo Yellow is rated for...
    view full answer...
  • Recommended Suspension Enhancement for 2019 Ram 2500 Towing 5th Wheel
    For your 2019 Ram 2500 I recommend the SumoSprings Solo Custom Helper Springs - Rear Axle # SSR-312-54 over the Timbren # TDR2500D. The reason is the difference in the impact on your unloaded ride quality. The SumoSprings have a weight capacity of 2,800 lbs which is more than enough based on your pin weight. Compare these to the Timbren with a capacity of 8,600 lbs. The Timbren is going to be a lot stiffer and I don't think you'll be happy with them installed when you aren't towing. The...
    view full answer...
  • Choosing Between SumoSprings Solo and Rebel for 2022 Ram 2500
    I would choose the Rebel # SS64VR over the Solo # SSR-312-54 for your 2022 Ram 2500 for two reasons. The first is the capacity. Although there isn't much of a difference between the two, based on what you will be towing and hauling the additional support will be beneficial. The second reason is the ride quality. You previously mentioned your wife's back and the importance of the unloaded ride quality. It is primarily for that reason that I would say the Rebel is the best choice for you....
    view full answer...
  • Recommended SumoSprings for 2022 Ram 2500 Towing Trailer on Rough Roads
    The SumoSprings Rebel # SS64VR is what you want if the best ride loaded and unloaded is your concern. The two piece design will be better overall on the Rebel. This is the model with the lower capacity of 3,000 lbs which should be plenty. The Solo # SSR-312-54 came into play based on budget. Since you're also getting an Equal-i-zer you probably want to save a little if possible. You're still going to benefit from these and they aren't going to have a big impact on your unloaded ride quality....
    view full answer...
  • Can You Remove Spacer on SumoSprings Solo Custom Helper Springs for a 2021 Ram 2500
    Yes, you can omit the spacer included with the SumoSprings Solo Custom Helper Springs part # SSR-312-54 which will allow the suspension to compress more before the springs engage. If you're looking for a smoother ride you can also switch to a softer spring like the SumoSprings Solo Custom Helper Springs part # SSR-312-47 which are rated at 1,500 lbs.
    view full answer...
  • Best Suspension Enhancement for 2016 Ram 2500 Towing Fifth Wheel With 1,600 Pound Tongue Weight
    For your 2016 Ram 2500 I recommend the SumoSprings Solo Custom Helper Springs - Rear Axle # SSR-312-54. The SumoSprings are a great choice to help with a bouncy ride. These springs minimize sway, cushion bumps and shocks, and also have a minimal impact when you aren't towing so you don't experience a stiff ride without your fifth wheel. With a tongue weight of 1,600 lbs I recommend the springs with a weight capacity of 2,800 lbs. There should be no need for air bags, and unlike air bags...
    view full answer...
  • Difference Between SumoSprings Rebel and Solo for 2018 Ram 2500
    The big difference between the Sumosprings Rebel # SS64VR and Solo # SSR-312-54 is the 2-piece design of the Rebel vs. the single spring of the Solo. In some applications the 2-piece design does allow more suspension travel since they can separate and the system would not try to reduce ability to extend the suspension, but in your case the Solo does not attach on both sides so this feature isn't as big of a deal.
    view full answer...
  • Recommended Suspension Enhancement for a 2021 Ram 2500 Power Wagon
    My recommendation for the best suspension enhancement on your 2021 Power Wagon, is the Air Lift LoadLifter 5000 Ultimate Air Helper Springs item # AL88289. These air springs include custom fit brackets that bolt to your Ram's frame with included hardware. They have a 5,000 lbs load leveling capacity that will not affect your suspension's ability to flex when off-roading. The reason these are the best option for towing and off-roading is because these air bags have internal jounce bumpers...
    view full answer...
  • How Tall are the SumoSprings Solo Custom Helper Springs Part # SSR-312-54
    The SumoSprings Solo Custom Helper Springs part # SSR-312-54 is 6-3/8 inches from the top of the attached mounting bracket to the bottom of the spring where it would sit on the table. I have linked a photo for you to check out showing where Kaitlyn measured for you as well as a photo of it installed. These are confirmed to fit the 2020 Ram 2500 and 3500 trucks.
    view full answer...
    Image 1 for Image 2 for
  • Can I Cut or Remove the Spacer from the SumoSprings Solo Custom Springs # SSR-312-54?
    Great question! I went ahead and reached out to my tech at SuperSprings (the makers of SumoSprings), and he confirmed that you cannot remove the spacer from the Solo Custom Springs # SSR-312-54 because you will not be able to tighten the bolts properly with the installation. However, you technically can cut down the springs if absolutely necessary. It is important to note that cutting the springs will void any warranty. Also, SuperSprings recommends cutting as little as necessary to get...
    view full answer...
  • Rear SumoSprings Custom Helper Springs For a 2021 Ram 2500 Availability In Black
    First the suspension enhancement systems will not increase your payload it only assists the stock suspension to absorb road shock and maintain a more level ride when hauling additional loads. The SumoSprings Solo Custom Helper Springs # SSR-312-47 are similar to the # SSR-312-54 in design. The # SSR-312-47 springs are black and have a 1,500lb capacity at 50% compression. While the yellow # SSR-312-54 have a weight capacity of 2,800lbs at 50% compression. A heavier duty option is the...
    view full answer...
  • Will The Timbren SES # TDR2500D Fit On A 2021 Ram 2500 Power Wagon
    Hey Brit, Yes, the Timbren Rear Suspension Enhancement System # TDR2500D would be a fit for your 2021 Ram 2500 Power Wagon. These jounce springs have a 8,600lb load leveling capacity so I do want to warn you that the ride will be pretty stiff when you are loaded down. Something a bit lower capacity-wise like the SumoSprings Solo Custom Helper Springs # SSR-312-54 would still get the job done but wouldn't affect your unloaded ride quality as much.
    view full answer...
  • Recommended Suspension Enhancement for 2021 Ram 2500 Towing 5th Wheel With 2350lb Pin Weight
    For your 2021 Ram 2500 I recommend going with the SumoSprings Solo Custom Helper Springs - Rear Axle # SSR-312-54 as it has a 2800lb load capacity which is plenty for your 2350lb pin weight. I recommend going with this over the # TDR2500D you were looking at as the Timbren systems are know for causing a very stiff unloaded ride, where the # SSR-312-54 will not affect your unloaded ride keeping the ride quality of your truck the same. I included a video of the # SSR-312-54 for you to take...
    view full answer...
  • Will SumoSprings Help With Sag When Towing With 2024 Ram 3500
    Hi Aaron, I can understand not like the TImbrens as those can definitely be rough on a pretty consistent basis; you made a nice choice for your 2024 Ram 3500 by instead going to the SumoSprings Solo Custom Helper Springs # SSR-312-54. The # SSR-312-54 will definitely help with sag while you're towing and getting hooked up to your trailer. They're going to be a bit higher up than Timbrens so you won't feel them quite as much with an unloaded ride, which is also why I like them more.
    view full answer...
  • Do SumoSprings Fit 2022 Ram 3500 Dually With Overload Spring & Help Towing Trailer
    The answer to both of your questions is yes; the SumoSprings will fit your 2022 Ram 3500 dually with the overload spring, and they are definitely going to be helpful to your truck when towing your trailer. I verified with SumoSprings that the correct fit for your '22 Ram 3500 is the following: - SumoSprings Solo Custom Helper Springs # SSR-312-54 What the SumoSprings # SSR-312-54 do is compress based on the amount of weight on your rear suspension. So when you are towing your toy hauler,...
    view full answer...
  • Rear Suspension Enhancement To Reduce Sag When 5TH Wheel Towing For a 2022 Ram 3500
    Yes, the SumoSprings Solo Custom Helper Springs # SSR-312-54 will help to reduce some of the sag you are getting on the rear of your 2022 Ram 3500 when you tow your 5th wheel. These will provide up to 2,800lbs of load support to reduce sag as well as help stabilize the rear of your truck in the turns. The Air Lift LoadLifter 5000 Ultimate Air Helper Springs with Internal Jounce Bumpers # AL88231 will give you the benefit of being adjustable which will allow you to add enough air pressure...
    view full answer...


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Info for this part was:

Employee Leah B
Edited by:
Leah B
Employee Mike L
Expert Research:
Mike L
Employee Jameson C
Expert Research:
Jameson C
Employee Andrew K
Video by:
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Employee Jeff D
Installed by:
Jeff D
Employee Robert C
Installed by:
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Employee Dustin K
Video Edited:
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Employee Jonathan Y
Video Edited:
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Employee Mary K
Written by:
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Updated by:
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