bing tracking image
  1. Vehicle Suspension
  2. SuperSprings Intl
  3. Bump Stops
  4. Towing/Load Leveling
  5. Light Duty
  6. Rear Axle Suspension Enhancement
THIS ITEM IS NOT A FIT FOR
2005 CrossRoads Zinger Travel Trailer
Special Savings on Select SuperSprings Items. See Cart for Savings.
SuperSprings Intl

SumoSprings Solo Custom Helper Springs - Rear Axle

In Stock
$298.99
Vehicle Suspension
Not Confirmed to Fit

2005 CrossRoads Zinger Travel Trailer

Will this fit?

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

Instant Rebate
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

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

Error submitting comment. Please try again momentarily.

Product Images

In Use/Installed

Customer Photos

1,800-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-612-47 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (2255)
  • Q & A (0)
  • Photos

SuperSprings Intl Vehicle Suspension

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

1,800-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 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): 1,800 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-612-47 SuperSprings Sumo Springs Solo Rear Vehicle Suspension Kit for Trucks

Item # SSR-612-47

Installation Details SSR-612-47 Installation instructions

This Product Fits The Following Vehicles




Customer Satisfaction Score:

Ratings & Reviews

4.7

2252 reviews
5 Stars
(1818)
4 Stars
(303)
3 Stars
(45)
2 Stars
(32)
1 Star
(54)
1,800-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:



by:



by:



by:



by:



by:



by:



by:



by:



by:



by:



by:



by:



by:



by:



by:



by:



by:



by:



by:



by:



by:



by:



by:



by:


25
2252
Show More Reviews

See what our Experts say about this SuperSprings Intl Vehicle Suspension

  • Suspension Enhancements for a 2017 Toyota Tacoma with Firestone Airbags
    I do have a suspension enhancement option for your 2017 Toyota Tacoma that is compatible with the Firestone Ride-Rite Air Helper Springs part # F2407, however, the Timbren Rear Suspension Enhancement System part # TTORTUN4L and the Roadmaster Active Suspension Kit part # RAS4514-SAT will not work. In order to use a set of suspension enhancements with your currently installed Firestone Ride-Rite Air Helper Springs, I recommend the TorkLift StableLoad Rear Suspension Upgrade part # TLA7311...
    view full answer...
  • Is Weight Distribution Needed With Suspension Enhancement on 2018 Toyota Tacoma?
    Those are very good questions and let's start with the capacities of both systems. The SumoSprings Solo Custom Helper Springs # SSR-612-40 has a 500 lb capacity and SumoSprings # SSR-612-47 has a 1,000 lb capacity, which means that is the highest amount of weight that the springs will actively still help your 2018 Toyota Tacoma's suspension. Anything over that and you won't see the benefits of the system. If 3,500 lbs is the max weight of your enclosed trailer when it is loaded then your...
    view full answer...
  • Best SumoSprings For 2023 Toyota Tacoma TRD For Towing & Load in Truck Bed
    Hey Mike, thanks for the question and the best SumoSprings for your 2023 Toyota Tacoma TRD for a combination of towing and a load in your truck bed are the 1,400 lb springs: - SumoSprings Solo Custom Helper Springs # SSR-612-40 The reason I like these over the 1,800 lb capacity # SSR-612-47 is because 1,400 lbs is more than enough to handle both the weight in your truck bed and the tongue weight of your trailer, and the 1,400 lb springs are also less dense, which means more cushioning...
    view full answer...
  • SumoSprings or Timbren Suspension Enhancement For a 2017 Toyota Tacoma Pulling Car Hauler Trailer
    I recommend the Timbren Rear Suspension Enhancement System # TTORTUN4 over the SumoSprings Solo Custom Helper Springs # SSR-612-47 for your 2017 Toyota Tacoma TRD Sport. The Timbrens have a much higher weight capacity at 6,000lbs versus the SumoSprings at 1,000lbs. This will give you a better ride level and stabilization when you are towing your car hauler. A Equal-i-zer Weight Distribution System # EQ37100ET may be a better option if you only need the suspension enhancement when you are...
    view full answer...
  • Height of SumoSprings Solo Helper Springs for 2016 Toyota Tacoma
    I went out the warehouse and measured the 1,000 pound SumoSprings your 2016 Toyota Tacoma and they're right under 5 inches at about 4-15/16 inches. These are custom fit for your Tacoma as long as it has the factory suspension. If you've modified it at all let me know and see if we have another option that'll work for you.
    view full answer...
    Image 1 for
  • Leveling Aluminum Tongue Camper
    Hi Don; what did you have in mind for load leveling? Are you looking for suspension enhancement for your 2022 Nissan Frontier to keep it level? If so, I recommend the SumoSprings # SS96EV (Crew Cab) or # SSR-612-47 (King Cab). These will smooth out the ride and provide you with additional support to keep you level while towing. If you were thinking about a weight distribution hitch something like the Fastway e2 # FA92-00-0600 will work with your tongue weight. However, you need to check...
    view full answer...
  • Recommended SumoSprings for a 2025 Nissan Frontier w/ a King Cab
    No, It doesn't but I have a set that does. Since your 2025 Nissan Frontier has the king cab you'll need the SumoSprings Solo Custom Helper Springs item # SSR-612-47. These have a 1,800 lbs capacity and are specifically designed to fit the king cab models. The SumoSprings Solo Custom Helper Springs item # SS96EV are designed to fit only the crew cab models of the 2025 Nissan Frontier. What kind of trailer are you going to be pulling with your Frontier? You can add this information and...
    view full answer...
  • 2021 Toyota Tacoma Suspension Enhancement and Weight Distribution for a 2018 Airstream Basecamp 16
    Hey John, The SumoSprings Solo Custom Helper Springs # SSR-612-47 are what I recommend installing on your 2021 Toyota Tacoma because they have zero maintenance, and you'll only feel them when you actually need them, so they won't affect your unloaded ride quality! As far as a weight distribution system goes, I recommend using the Strait-Line Weight Distribution System w/ Sway Control # RP66083 and pairing it with the 2-5/16" Hitch Ball # 19286 and the Chain Hangers # RP58305 so you can...
    view full answer...
  • Suspension Enhancement For 2025 Nissan Frontier King Cab
    Hi Shawn! The SumoSprings Solo Custom Helper Springs - Rear Axle # SSR-612-47 are indeed the correct part for your 2025 Nissan Frontier King Cab 2 wheel drive. This is a pretty quick and easy install and once done, it doesn't need to be touched again. It's one of the reasons these are popular. That and they work well and are American made! What are you going to be towing?
    view full answer...
  • SumoSprings or Air Lift LoadLifter For 2022 Toyota Tacoma TRD Off Road
    Hello Alex, thanks for reaching out. How often do you plan to tow? If you just take a few shorter trips to the lake each year, I would lean towards the SumoSprings part # SSR-612-47. These are easy to add on, and they will help to add support and level out your ride while towing. You may still experience some sagging, but they will still make a noticeable difference. If you plan to tow more often, or go on longer trips, the Air Lift air bags # AL49DQ will be the way to go. These are great...
    view full answer...
  • Best Jounce Style Aftermarket Suspension Kit for a 2023 Toyota Tacoma
    The best jounce-style springs for your 2023 Toyota Tacoma are the SumoSprings Solo Custom Helper Springs # SSR-612-47 because they are rated for 1,800 lbs and have a progressive load feature which means you won't notice they are there until your Tacoma is under a load. The Timbren brand is a really popular brand but those springs are much more stiff so even when they are engaging it feels more stiff whereas the SumoSprings have more of a "soft" engagement so your ride quality won't suffer...
    view full answer...
    Image 1 for
  • Height of SumoSprings for 2024 Nissan Frontier
    The height of the SumoSprings Solo Custom Helper Springs # SSR-612-47 is 4-1/2". These are designed to have a 1/2" - 1" gap so if you have a lift you will need to measure to make sure they will fit. If the gap is more than 1" then they wouldn't work properly since the vehicle will have to sag even further before they engage. I have attached an installation video below for your reference.
    view full answer...
  • Do I Need Suspension Enhancement For My 2020 Toyota Tacoma TRD Off Road?
    Thanks for reaching out, Kyle. According to the online owner's manual, the 2020 Toyota Tacoma TRD Off Road has a max towing capacity of 6,500 lbs. So based on this, yes, I think you can definitely tow a 2017 Passport Ultra Lite with a 4,400 lb dry weight. I do suggest that you consider a suspension upgrade though. Once the trailer is loaded you will likely be pushing it closer to its limit for towing. A suspension upgrade will help to keep the ride level and stable. An air bag kit like...
    view full answer...
  • What Suspension Enhancement do You Recommend for Reducing Sag on My 2021 Toyota Tacoma?
    You are definitely on the right track with the SumoSprings. For your 2021 Toyota Tacoma, I recommend using the SumoSprings Solo Custom Helper Springs - Rear Axle # SSR-612-47. The reason why is because this model of SumoSprings will provide your Tacoma with 1,800 pounds of load-leveling support compared to the 1,400 pounds of support of the # SSR-612-40. This load-leveling support will definitely help decrease the 1.5 inch sag. Also, the SumoSprings # SSR-612-47 provide progressive load...
    view full answer...
  • Jounce Bumper Helper Spring Options for 2021 Toyota Tacoma
    Some 2021 Tacoma were equipped with 3 leaves in the springs, some with 4, so you'd just need to take a quick peek at what you have to determine which Timbren kit you'll need, as I have no way to look up how your truck is equipped. For a 4WD with 4 leaves in the spring pack, use # TTORTUN4, for 3 leaves use # T72FR. For 2WD vehicles with 4 leaves, use # T62FR or # T72FR for 3 leaves. This being said, the Timbren systems offer much more support than what you'd actually need to counteract...
    view full answer...
  • Recommended SumoSprings Front and Rear Suspension Enhancement For a 2020 Nissan Frontier Pro-4X
    For your 2020 Nissan Frontier Pro-4X there are 2 options available for the rear leaf spring suspension. The one you choose will depend on your usage for your Frontier. The SumoSprings # SSR-612-40 is the lighter option with a weight capacity of 1,400lbs. Do remember that these will not increase your payload or towing capacities but are designed to assist the factory suspension. These are the ones that I recommend for those that are only hauling lighter loads occasionally and don't always...
    view full answer...
  • Recommended SumoSprings for a 2022 Toyota Tacoma 4WD
    For your 2022 Tacoma you are going to want the SumoSprings Solo Custom Helper Springs item # SSR-612-47. These attach directly above the leaf springs so the block between your axle and leaf spring won't affect the springs function. I have linked the instructions below along with a review video.
    view full answer...
  • Comparing Leaf Help Springs And Jounce Springs For A 2023 Toyota Tacoma 4WD
    Jounce springs will sit on the frame and come into contact with the axle as the suspension compresses. Typically the vehicle manufacturer will place a rubber-type material here to prevent the harsh bump between these two components when heavily loaded or hitting rough terrain. These manufacturer jounce bumpers are usually pretty small and only get used when the vehicle is loaded down so upgrading to larger ones like SumoSprings will have them activate sooner and provide you with more load...
    view full answer...
  • SumoSprings Custom Helper Springs For a 2024 Nissan Frontier King Cab
    You will want to select either the 1,400LB # SSR-612-40 or 1,800LB # SSR-612-47 SumoSprings Solo Custom Helper Springs for your 2024 Nissan Frontier King Cab. The only difference between these is the amount of capacity they are capable of supporting and the color of the part itself. If you are only occasionally hauling heavy loads the lighter option would work the best for you. These will have the least affect on the quality of your ride when unloaded as well.
    view full answer...
  • Recommended Suspension Enhancement for 2017 Toyota Tacoma for Occasional Towing
    If the loaded tongue weight of your trailer will be around 640 pounds, the better option between the two SumoSprings systems that you mentioned will be the higher-rated # SSR-612-47, which features a weight capacity of 1,000 pounds. The # SSR-612-40 that you also referenced has a weight capacity of 500 pounds so it may be a bit under-rated when hooked up to your fully loaded trailer. Both systems are confirmed to fit your 2017 Toyota Tacoma. With this in mind, any jounce style spring...
    view full answer...
  • Recommended SumoSprings for 2018 Toyota Tacoma with TRD Package
    For your 2018 Toyota Tacoma TRD 4wd the correct Sumo Springs are the Sumo Springs Custom Solo Helper Springs # SSR-612-47, which will replace your factory bump stops with a durable microcellular urethane bump stop. These are designed to help level uneven towing loads and fight sway, and are a great addition for any truck that is towing or carrying heavy payloads. I've linked a review video of these for you to check out.
    view full answer...
  • SumoSprings Options For a Domestic 2019 Nissan Frontier 4x4
    For your 2019 Nissan Frontier SV 4x4 you will have two choices. Both of the kits are designed to mount with the Frontier's factory u-bolts. Do remember that these do not increase your payload or towing they only work to help assist the factory suspension and reduce sag. The first is their 1,800lb SumoSprings Solo Custom Helper Springs # SSR-612-47. Second is the 1,400lb SumoSprings Solo Custom Helper Springs # SSR-612-40. You will want to choose the kit that most closely represents...
    view full answer...
  • Height of SumoSprings for 2023 Toyota Tacoma
    The height of the SumoSpring Solo Custom Helper Springs # SSR-612-47 is 4-1/2". Since you have a lift on your 2023 Toyota Tacoma you will need to measure to see if they will fit or not. There should be 1/2" - 1" gap once installed for the SumoSprings to work properly. If the space is larger that means your truck would have to sag that much more before they engage. Basically you wouldn't be getting the support you're looking for.
    view full answer...
  • Recommended Sumo Springs for 2017 Toyota Tacoma with Truck Topper and Towing 4000-lbs Trailer
    With the tongue weight of the trailer and the weight of the topper, the Sumo Springs # SSR-612-47 with a 1000-lbs capacity are the right choice since Sumo Springs are progressively load bearing; this means that they get stiffer as more weight is applied and really do a great job of not affecting the unloaded ride quality. The Sumo Springs are a great solution that install without any drilling required, and they'll replace your factory bumpstops, so now when you bottom out you're going to...
    view full answer...


< Previous
12



Do you have a question about this Vehicle Suspension?


Info for this part was:

Employee Leah B
Edited by:
Leah B
Employee Andrew K
Video by:
Andrew K
Employee John S
Video by:
John S
Employee Thomas T
Video by:
Thomas T
Employee Jeff D
Installed by:
Jeff D
Employee Robert C
Installed by:
Robert C
Employee Aidan B
Installed by:
Aidan B
Employee Jameson C
Expert Research:
Jameson C
Employee Dustin K
Video Edited:
Dustin K
Employee Chris R
Video Edited:
Chris R
Employee Jonathan Y
Video Edited:
Jonathan Y
Employee Mary K
Written by:
Mary K
Employee Wilson B
Updated by:
Wilson B
Employee Alex H
Updated by:
Alex H
Employee Noah M
Updated by:
Noah M
Employee Jacob H
Test Fit:
Jacob H

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


<