SumoSprings Solo Custom Helper Springs - Rear Axle
Item # SSR-312-54
Retail:$406.74
Our Price: $382.99
You Save: $23.75
Confirmed to Fit
2021 Ram 3500
Cab and Chassis - 2 Wheel Drive
Cab and Chassis - 4 Wheel Drive
Pickup - 2 Wheel Drive
Pickup - 4 Wheel Drive
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2021 Ram 3500 - SumoSprings Solo Custom Helper Springs - Rear Axle
- Rear Axle Suspension Enhancement
- Jounce-Style Springs
- Standard Duty
- SuperSprings Intl
2,800-lb Capacity. Upgrade your Ram 3500'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.
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.
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 Ram 3500 Suspension Kit for Trucks
Installation Details
Customer Satisfaction Score:
94% were satisfied with this product
6% of customers were not satisfied
- Wrong item was ordered
- etrailer mistake
- Product did not meet expectations
Customer Reviews
SumoSprings Solo Custom Helper Springs - Rear Axle - SSR-312-54
Average Customer Rating: 4.7 out of 5 stars (2320 Customer Reviews)
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.by: Mike W06/03/2024
Works great when I tow my 11,000lb. 5th wheel camper with 1800lb. hitch weight. A bit stiff for everyday driving and hauling of my enclosed utv/snowmobile trailer, so I remove themin the fall.
by: Maria 03/23/2024
Dodge Ram Pickup
Installed the Sumo Springs on my RAM 2500 truck to keep my camper from rocking side to side. These are awesome and easy to install.
by: Mcconnell02/11/2024
2015 Ram 2500
The work very well when pulling heavy loads. I definitely see a difference in the ride and level of truck when loaded down. I’m pulling around 14k in my hitch/ dump trailer. My only issue is ride quality when unloaded. If you hit a bump at higher speeds it rebounds fast and hard and you know it!
by: Shane07/21/2023
Great product. Had them installed within 30 minutes of receiving them. Didn’t even have to jack up the truck! (2022 Ram 2500. Hopefully they perform as well as the set on my F150
by: Brian01/31/2021
2020 Ram3500
I just finished installing the Sumo Springs to my 2020 Ram 3500. The install was super easy. Instruction were easy to follow and the whole thing took less time than I thought. I won’t know how they perform until I pull the 5er out of storage this spring, but I am ready. My only question and the reason for 4 stars instead of 5 was I thought they would sit closer to the axle than they did, may 2” from axle and I would have liked may 1” maybe I could have used another spacer and longer flat head screw to bring it closer but we will see when I put the weight on the truck. I included picks if someone wants to give me their opinion. So far I am really happy with them.
by: James06/18/2021
2021 Ram 2500
This is my second set of SumoSprings. The first set was on a 2020 Ram Rebel. They fit perfectly on that truck with no space between the spring and the axle. They were much more difficult to install on the Rebel.
This set was much easier to install. When I ordered the springs the reviews were split on whether there would be a space between the spring and the axle. I made sure to order the correct pair for my 2021 Ram 2500. New truck for the larger trailer I’m now towing. I received the package very quickly and was surprised at how small the box was. I opened it to find the springs and all the parts in the shipping box along with the pictured instructions. I was slightly perturbed that it appeared to be a return but the parts and springs looked new so I proceeded to install. I placed the setup next to the bracket and realized there would be a space between spring and axle so I called etrailer to check if I was missing a spacer. I also was a bit worried that I ordered the wrong set since the instructions only say 2014-2017 and not 2021. I was told it was designed that way so I decided to give it a try given my experience with the Rebel and installed the springs per the instructions. Took less than 30 minutes total. I used the provided loctite on the set screw and spring.
I then drove around a bit and unloaded there is no change to the rear suspension. Going over larger bumps you can tell when the spring begins to engage as there is a little rebound. I then hooked up my trailer. With 815 lbs tongue weight the springs are engaged on the axle and with my WD bars engaged the truck is back to stock rake per the zero longitude angle with the 4x4 page pulled up. I haven’t towed yet but expect it to be similar to my Rebel and I was very satisfied with that performance. I recommend them for your your truck. Especially if you have a Ram.
by: Bobby K.06/19/2020
These things are great. A year later and they still work perfectly. Granted, they are not as clean but they still work as designed. They keep the trailer (30' bumper pull) from bucking and it keeps it "toned down" when we hit bumps. It used to bounce and bounce after a bump but now it keeps it in check. I would recommend these to anyone as an alternative to other expensive options.
My vehicle is a 2016 Ram 2500 CTD
by: James 10/22/2023
2022 Ram 2500
Really good product, performs as advertised and very simple installation.
by: Bryan07/19/2021
Easy installation.
Bryan
7/23/2022
So far so good, a year later no issues.
by: Joseph05/25/2021
Outstanding service, very prompt. This is my second pair of sumo springs and I love them.
by: Tracy 02/24/2023
2016 Dodge Ram Pickup
Installed on ram 3500 DRW for hauling a 4200lb truck camper. Easy installation and helps with side sway also tamed the ride while towing 16,000 lb 5th wheel trailer. Well worth the money for my applications
by: Marc 11/17/2022
Sumo Springs work great. Had a little squat in the truck when we were towing & now no squat & no more oncoming traffic flashing their lights at us as we go down the road.
by: Norman 03/25/2023
2022 Ram 2500
E Trailer has excellent shipping speed and can't wait to see what a difference these make and will write a review later. Product looks well made.
by: Dangerboy08/01/2021
The Sumo Springs are a pretty good product. I have a 2019 Ram 3500 with about 3600lbs of bed payload that tows a Jayco 39-foot fifth wheel RV. When hitched I had about a five or six inch drop in the truck. I have no problem with steering - the only problem I had was going over the "ski jumps" as I call them on bridges along the highways. On the trip down to Florida in November 2020 I bottomed out a handful of times. Enough that it made me want to do something. I considered air but read about these so I tried them and can say I'm very happy with the choice. The Sumo springs take the place of the stock joust bumper. When the truck is empty/unhitched the Sumo springs make no contact with the axle housing. When connected, the springs contact the axle and I experienced no bottoming out.
by: Grant M.05/18/2019
Bought these springs for my 3/4 ton truck. I was using a 9.5 ‘ slide in Lance camper and they helped immensely. I have since upgraded to a 34’ toy hauler and they are still working great!
Grant M.
5/19/2020
Still working great!
by: Craig10/12/2023
Great product and fast shipping
by: John R.08/19/2021
2015 Chevrolet Silverado 1500
Great Product! I recently put on new Thuren Fabrication rear springs and Fox shocks on my 2016 Ram 2500 4x4 Mega Cab. It gives it a better ride and more suspension travel but you lose some of the weight capacity. After loading the truck for a trip and hooking up the trailer, the back end was sagging. After making it to Wyoming, I ordered the SumoSprings from etrailer and had them in three days. I added the SumoSprings and it is back to normal, even with a load, and I was able to drive home with much more confidence. The ride is still great! Super easy to install, only half an hour total time. Much easier if you can jack it up and pull the wheels off.
by: Timothy03/29/2022
When first installed on 2020 Ram 2500 there was less than 1/4” of clearance to axle which produced a harsh ride when unloaded. I redrilled the original bracket and eliminated the supplied spring mount which resulted in approximately 3/4” of clearance unloaded and great ride quality both empty and loaded.
by: Bob 09/21/2020
Dollar for dollar, for me, they beat air suspension hands down at half the cost.
Bob
9/23/2021
Product is still doing great pulling a 36’ toy hauler.
by: Marty 07/20/2021
2019 Dodge Ram Pickup
When pulling my toys with my 2018 Ram 2500 Powerwagon I had a rocking issue that caused the trailer to sway terribly until I installed the Sumo Springs! Now I tow my 30 foot 5th Wheel camper with a 19 foot boat behind with no issues at all! I love 'em!
by: Brian03/30/2022
Dodge Ram Pickup
Got these to help with rear sag on my Ram 2500 when I’m towing dump trailers. They keep the rig level and really shine when hitting bumps and bridges at speed while towing loads from the dreaded rear bottoming out and bouncing. Took less than 30 minutes to install. I have 35,000 towing miles on them now!
by: Dan 09/03/2021
2020 Dodge Ram Pickup
Install on my 2020 Ram 2500 was fast and easy. Installed in less than 30 minutes. Only negative ref this product is that it cannot be installed without the spacer. Made my ride much stiffer when not towing. Without the spacer Sumospring would only be engaged while towing my fifth wheel. Have not towed yet, but will next weekend.
by: Jim 06/30/2022
As promised, beefed up my suspension to pull my 5th wheel with less bounce.
by: Michael 05/16/2020
Assembly was very straight forward, with little problem. I can not feel a difference in the ride so far with no load.
Anticipating a improvement when I load my 5th wheel.
by: Jason07/14/2018
2017 Ram 2500
Customer service and ordering process was very professional and easy. Product arrived in 2 days. Installation took about 20 minutes total, and they fit exactly as intended. I have yet to tow a trailer with them on, but am picking up my new fish wheel at the end of the week, and am anxious to see how they handle the load.
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See what our Experts say about this SuperSprings Intl Vehicle Suspension
- Will Helper Spring/Suspension Enhancement Products Increase Payload Capacity of 2019 RAM 2500HD None of the suspension enhancement/helper springs we offer will increase the stated payload or suspension capacity of your vehicle, but they will provide additional support for the existing suspension. The Timbren # TDR2500D Aeon springs will offer up to 8600 lbs of support, but they won't increase the vehicle capacity. The Timbrens are a nice product, but once the preload (gap between spring and axle when rear suspension isn't compressed) is taken up, the springs will be pretty stiff....
view full answer... - Suspension Enhancement Recommendation that Fits 2018 Ram 3500 Cab and ChassisWe have suspension enhancement that fits your 2018 Ram 3500 cab and chassis with the SumoSprings part # SSR-312-54 but we don't have any air bag kits that are a fit. The SumoSprings will give you the additional support you are wanting and have the added benefit of not requiring any maintenance and an easier install. They do a great job balancing additional support and ride quality unlike other similar options.
view full answer... - Best Sway Control Suspension Enhancement for 2015 Ram 2500 With Truck Bed CamperWhen it comes to carrying a truck bed camper, I always go with Timbren Suspension Enhancement Systems over the SumoSprings Custom Helper Springs similar to the # SSR-312-54 . With that being said, I think the better solution for your 2015 Ram 2500 are the Timbren # TDRTT3500E, since they are specifically designed for trucks carrying truck bed campers. The Timbren # TDR2500D would also work but are meant more for carrying heavy payloads and may not provide as much body roll dampening. The...
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- Which SumoSprings Kit for 2021 Ram 3500HD Towing Fifth Wheel CamperHey Daryl, the SumoSprings Solo kit part # SSR-312-54 would be a great option for your 2021 Ram 3500 that has sag when towing your camper. This will provide an additional 2,800 lbs of suspension support which will take care of the problem.
view full answer... - SumoSprings Recommendation for 2015 Ram 2500 Towing 8-9K Steel TrailerI do have a solution for you, however the black SumoSprings Solo Custom Helper Springs # SSR-610-47 you referenced in your question are not a confirmed fit for your 2015 Ram 2500. The yellow SumoSprings Solo Custom Helper Springs # SSR-312-54 are a great option for your Ram 2500 for upgrading the rear suspension and keeping your vehicle level. These have a 2,800 pound capacity and the springs will help support the heavy load you're pulling and also minimize sway. They offer progressive...
view full answer... - Recommended Suspension Enhancement for 2017 Ram 2500 and Grand Design 295RL 5th Wheel TrailerFor your 2017 Ram 2500 the air suspension may help a bit with the chucking you are experiencing when towing your Grand Design 295RL 5th wheel trailer as well as porpoising. Because you already have a hitch that has integrated cushioning, the air springs may actually create more of an issue as the air springs complete with the 4 Integrated bands inside your current hitch. Instead of the # F2580 you asked from, I recommend the SumoSprings Solo Custom Helper Springs - Rear Axle # SSR-312-54...
view full answer...
- Which Sumosprings Solo Kit Fits 2019 RAM 2500Actually between the two SumoSpring part numbers you mentioned only the part # SSR-312-54 that you mentioned is a confirmed fit and available for your 2019 Ram 2500.
view full answer... - Recommended Suspension Enhancement for 2019 Ram 2500 Towing 5th WheelFor 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... - Which SumoSprings Kit for 2016 Ram 3500 Towing 5th Wheel Camper with Suspension SagI'd go with the lighter duty SumoSprings part # SSR-312-54 if you ever plan to drive the truck without your trailer connected as the ride quality would be much nicer than the higher rated # SSR-301-47-2 that you mentioned.
view full answer... - Choosing Between SumoSprings Solo and Rebel for 2022 Ram 2500I 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... - Rear Suspension Enhancement for a 2017 Ram 2500The Timbren Rear Suspension Enhancement System part # TDR2500D that you referenced which are a fit for your 2017 Ram 2500 will help to alleviate some of the rear end sag but they have been known to produce a rough ride which can also be described as bouncy by some. For an alternative that will also alleviate some of the rear end sag but not affect the ride quality in a negative way as much, I recommend the SumoSprings Solo Custom Helper Springs part # SSR-312-54 which are very similar to...
view full answer... - 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... - SumoSpring VS Timbren for 2017 Ram 3500 for Ride Quality and 5th Wheel Towing SupportSince 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... - Can You Remove Spacer on SumoSprings Solo Custom Helper Springs for a 2021 Ram 2500Yes, 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... - Will a Suspension Enhancement System Raise 2021 Ram 2500 Crew CabThe suspension enhancement systems like the Timbren or Sumo Springs will not raise your 2021 Ram 2500. They will only touch your axle once you load your truck. This will allow you to still use your garage for your truck. The Timbren Rear Suspension Enhancement System # TDR2500D is the system I recommend. I recommend the Timbren system because the rubber construction makes Timbren's springs more elastic than similar products constructed of microcellular urethane. And more elasticity allows...
view full answer... - Recommended Suspension Enhancement For 2015 Ram 2500 With Factory Air SuspensionSince your 2015 Ram 2500 has the factory air suspension I recommend the SumoSprings Solo Custom Helper Springs # SSR-312-54 as they are confirmed to work with the factory air suspension system, and will offer 2800lbs of support to your suspension. The best part about the # SSR-312-54 is that it will not negatively effect the loaded or unloaded ride like the Timbren options. Keep in mind that any suspension enhancement options are meant to support your suspension, and will not increase...
view full answer... - How to Pick Out Sumo Springs for 2018 Ram 2500 Towing Fifth Wheel TrailerPicking the best weight rated SumoSpring for a truck like your 2018 Ram 2500 is typically based on how much of the truck's weight capacity you are using when towing/carrying cargo and how often you would be doing so. So on the high end we have the part # SS27GR which has a 5,000 lb capacity and would be what I'd recommend if you were towing at the capacity of the truck most of the time. But for your application where you aren't towing quite that much the SumoSprings Solo part # SSR-312-54...
view full answer... - Recommended SumoSprings for 2022 Ram 2500 Towing Trailer on Rough RoadsThe 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... - Aftermarket Suspension Enhancements Compatible With My 2022 Ram 2500 With Factory Air SuspensionI can definitely get you setup with suspension enhancement for your 2022 Ram 2500. Unfortunately, since you already have factory air suspension none of our air helper springs are compatible with your vehicle. I do have two recommendations for you. If you are going to be hauling heavier loads you can go with the Timbren Rear Suspension Enhancement System. part # TDR2500D. This item has a weight capacity of 8,600 lbs. If you have a lighter load to carry, you could use the SumoSprings Solo...
view full answer... - Suspension Enhancement Recommendation for 2015 Ram 2500 to Prevent Camper SwayFor suspension enhancement that helps with body roll a lot of people swear by the SumoSprings. Which for your 2015 Ram 2500 the recommended kit is the part # SSR-312-54 which fits 2WD or 4WD. This will fit your truck and work well with your 2,500 lb camper.
view full answer... - Best SumoSprings for 2019 Ram 2500 with 1,480 Pounds of Trailer Vertical Weight? For a great set of SumoSprings for your application, that is the rear axle SumoSprings Solo Custom Helper Springs # SSR-312-54. This model provides 2,800 pounds of load leveling capacity for your 1,480 pounds of added vertical tongue weight with your 5th-wheel trailer. It also helps accommodate some of the horizontal weight from the trailer. on your 2019 Ram 2500 4x4. This decreases rear sag and provides you with more overall control of your vehicle. If you are open to suggestions, if...
view full answer... - Recommended Air Bags for 2018 Ram 2500 Towing 14,000-lbs 5th WheelWe can definitely help you out with this and the AirLift # AL88289 would be a great solution for your 2018 Ram 2500 that are compatible with an in-bed hitch. These air bags have a jounce spring inside each air spring that helps to improve ride comfort, reduce sway, and help with cornering; this provides support progressively - the more you load the springs, the stiffer they become, so they're great for 5th wheel towing. These would do a great job to help support the roughly 2000-lbs pin...
view full answer... - Helper Spring Recommendation for 2016 Ram 3500 With 5th Wheel HitchIf 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... - Does 2018 Ram 2500 Need Weight Distribution Towing 4k CamperYour truck is heavy duty enough that a weight distribution system is not as needed. Would it help to some extent? Sure, but for as big of a truck you have and for how light weight your RV you'll be just fine without a WD system. Also, they do not make aluminum or lighterweight options either. Some suspension enhancement like the SumoSpring kit part # SSR-312-54 would give you additional support to get rid of any possible sag as well as improve handling so that would be one solution that...
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Info for this part was:
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Brian
1/31/2022
Fantastic, the Sumo’s are working as promised. Helps with sag, smooths out the ride and provides support from sway. I couldn’t be more happy. This year we will be adding Sumo’s to the 5er to help in the back, super excited about this upgrade.