1. Vehicle Suspension
  2. SuperSprings
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  5. Standard Duty
SuperSprings Custom Suspension Stabilizer and Sway Control Kit

SuperSprings Custom Suspension Stabilizer and Sway Control Kit

Item # SSA25
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SSA25 - Standard Duty SuperSprings Rear Axle Suspension Enhancement
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3,300-lb Capacity. Upgrade your rear suspension by installing these helper leaf springs above your vehicle's factory leaf springs. They significantly reduce sway and prevent sagging, which is perfect for towing or hauling heavy loads. Lowest Prices for the best vehicle suspension from SuperSprings. SuperSprings Custom Suspension Stabilizer and Sway Control Kit part number SSA25 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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SuperSprings Vehicle Suspension - SSA25

  • SuperSprings
  • Leaf Springs
  • Rear Axle Suspension Enhancement
  • Standard Duty

3,300-lb Capacity. Upgrade your rear suspension by installing these helper leaf springs above your vehicle's factory leaf springs. They significantly reduce sway and prevent sagging, which is perfect for towing or hauling heavy loads.


Features:

  • Reinforce your vehicle's rear suspension with extra leaf springs that prevent sagging and reduce sway by up to 30 percent
    • Work like sway bars to stabilize your OEM springs and keep them from twisting
    • Compensate for windy conditions, wind turbulence from big rigs, and weight shifts from cornering
    • Lift your truck when you are carrying a heavy load and prevent bottoming out
  • Adjust automatically to your payload
    • Rollers on each end of the SuperSprings activate when the OEM springs flex under load
    • Rollers deactivate when OEM springs aren't under load
  • Can be customized - the shackles attaching the SuperSprings provide several options for installation
    • Choose a setting that increases load support and ride height for constant heavy loads or to compensate for minor spring fatigue in an older automobile
    • Choose a setting that maintains the original factory ride conditions and minimizes effect on unloaded ride quality and height
    • Choose a medium setting that balances support, height, and ride comfort
  • Install easily - bolt on above your existing factory springs with no drilling required
    • For some models with factory springs that sit above the axle, the included poly spring pads prevent shifting
    • Dense polyurethane blocks seat between the top of the factory springs and the underside of the SuperSprings
  • Require no maintenance - no tubing or air pressure to monitor or adjust like air springs
  • Save money
    • Extend the life of brakes, tires, and factory suspension
    • Cost less than air spring systems
  • Made in the USA


Specs:

  • Weight capacity: 3,300 lbs
    • SuperSprings will not increase your vehicle's weight-carrying capacity
  • Limited Lifetime warranty
  • 30-Day satisfaction guarantee


Overload Spring vs. Leaf Spring

Note: This kit is designed to fit a vehicle with factory top overload springs. As shown in the picture above, a top overload spring sits above the factory leaf spring pack.


SuperSprings diagram of roller and shackle system for extra leaf spring

These additional leaf springs add support and sway control to your existing OEM suspension. Just bolt on SuperSprings over your existing factory springs, and they automatically work when you need them. As the factory spring flexes, a roller at each end of the beefy helper spring reacts to engage the helper spring and to provide extra support. The springs help to better distribute cargo weight throughout your existing suspension, channeling that weight to the points on the frame that are designed to support heavy loads.


SuperSprings leaf spring installed on a vehicle

Placing these leaf springs above your factory springs helps to keep your OEM springs from twisting, so the SuperSprings act like a sway bar, reducing the body roll that makes driving more difficult and dangerous. With these helper springs, driving is safer and easier when it's windy, when your vehicle is rocked by a passing semi, and when you are cornering. The springs help to reduce sway by up to 30 percent. SuperSprings also allow more wheel travel in the rear suspension when they are under load, so they maintain traction and ride comfort better than rubber or polyurethane bumpers. That means they're great for drivers who frequently tow.


Truck before SuperSpringsTruck after SuperSprings

You can also customize the level of support provided by SuperSprings. For most models, the shackles that attach the helper leaf springs to your existing leaf springs have several installation options:

  • For greater support and ride height when your suspension is under a constant load or if you have an older automobile with some spring fatigue, install the helper springs using the upper bolt holes
  • To maintain the factory ride and reduce the effect on your ride height, install using the lower bolt holes
  • To balance support, height, and ride comfort, install using the upper hole on one end and the lower hole on the other

SuperSprings are a maintenance-free, low-cost alternative to air spring systems, which require constant monitoring and air pressure adjustment. These helper leaf springs respond automatically to the load you carry, so there is no crawling under your truck to adjust them. You'll also reduce wear and tear on your suspension, brakes, and tires, which saves you money. The bolt-on installation means that they are easy to fit - no drilling required.



SSA25 Super Springs Leaf Spring Suspension Enhancer - Anti Sway

Installation Details SSA25 Installation instructions

This Product Fits The Following Vehicles





Customer Reviews

SuperSprings Custom Suspension Stabilizer and Sway Control Kit - SSA25

Average Customer Rating:  4.7 out of 5 stars   (76 Customer Reviews)

3,300-lb Capacity. Upgrade your rear suspension by installing these helper leaf springs above your vehicle's factory leaf springs. They significantly reduce sway and prevent sagging, which is perfect for towing or hauling heavy loads.

- SSA25
by:

work's Great , I will be purchasing mor e. 794910



- SSA25
by:
2019 Ford F-350 Cab and Chassis

Item is in great condition but the shipping box was completely torn up 735556



- SSA25
by:

The supersprings are simple to install. Good instructions. They have done a great job on helping with weight. The Poly Spring Pads do not last. I have had this setup for 7 months and the pads are falling apart. 729663



- SSA13MTKT
by:

Review from a similar Sway-Control in Vehicle Suspension


Spring are great and easy to install... ..... 166185



- SSA28
by:

Review from a similar Sway-Control in Vehicle Suspension


Just installed and I loved how easy it was took 30 min tops. I expected a much stiffer rear end with the bed empty but was pleasantly surprised at how smooth the ride remained. I did notice a more stable and responsive feel while driving. All in all super impressed with the product so far, shipping was fast (ordered Saturday and received Wednesday, in canada) everything I needed was in the kit and it only raised the rear end up about 1/2". 316290



- SSA41
by:

Review from a similar Sway-Control in Vehicle Suspension


The Superspring SSA41 is high quality and fairly easy to install. I would recommend it to any one that owns a medium size motorhome. 612740



- SSA28
by:

Review from a similar Sway-Control in Vehicle Suspension


Removed these put back in the box I did not like the way the truck handled 418802



- SSA28
by:

Review from a similar Sway-Control in Vehicle Suspension


The installation was easy and straight forward. I removed the tires which gave me great access to install the springs. The ride is smooth and stable. I would recommend this product to others. 226686



- SSA4
by:

Review from a similar Sway-Control in Vehicle Suspension


Product does just what it says it does. Installed them on a Thursday and towed with them that weekend....... and they did a great job. Handled the tongue weight of my dump trailer better. I did notice a decreased amount of "wave" effect when you are in tow and your heavy trailer hits a bump or swale in the road; and transfers that energy to the truck. Sorta feels like you got a heavy tail that someone is tugging on. This was significantly reduced and made for a pleasant ride Later on Sunday then threw a load of firewood (no trailer this time) in the bed full; and in comparison of a previous haul with wood the truck did not sag as much. My truck config is stock, double cab w/ 8' bed 4x4. I did not notice a stiffness in ride with and empty bed or no trailer in tow. Seemed to be just fine. Slightly raised the rear but with the long truck it is hardly noticeable. One part of the installation was a little difficult, when it came time to compress the leaf it was a bit of a chore. I did have a 5" c-clamp but it was getting tough the last few inches to get the roller underneath the stock leafs. If I had a special leaf spring clamp tool as shown on some of the youtube vids I would have been done in about a 1/2 hour but with out this tool it makes the compression part slow. 145702



- SSA28
by:

Review from a similar Sway-Control in Vehicle Suspension


It a good product for 2017 Ford f150 except 1 factor that it had to mounted more toward the rear and the no bracket to hold it in place if I get a tire rotation or lift the vehicle from the rear the spring roll away and need to clamped while lowering the vehicle. I contacted Super directly to there warranty department and they sent me a lock down kit. It also Lifted the truck about a inch on low setting so I'm sitting at 39 inch in rear. 505177



- SSA28
by:

Review from a similar Sway-Control in Vehicle Suspension


These springs improved the ride considerably , less roll on corners with the slide in camper on and wheel hop on rough roads . In general the handling was much improved. 441128



- SSA11MTKT
by:

Review from a similar Sway-Control in Vehicle Suspension


The kit looks really good but I can’t figure out how to install. Enclosed are two photos showing my van suspension and the parts your sent. The instructions do not show my van with only one spring. Can you advise?????????????? Thanks. 603418


Comments
If you look at page 4 of the instructions which Ive linked for you, you can see photos showing a single leaf spring set up just like whats shown in the photos you provided thanks for the photos!. Im guessing that page was not included in your instructions for some reason.
-- Mike L - 02/08/2019

49307
Comments
Springs are working wonderful after I figured out the install,. The initial problem was all my fault for being a man and not really reading the instructions haha. All is well
Timothy - 02/09/2020

66471

- SSA28
by:

Review from a similar Sway-Control in Vehicle Suspension


The super springs installed easily. Won't be able to try them out for a few months, waiting for the camping season. 604770



- SSA4
by:

Review from a similar Sway-Control in Vehicle Suspension


Great item!! The Supersprings performed just as described. No more sag in the suspension and the benefit of better control. Installation was an hour with the help of an experienced mechanic and the right tools. If it wasn't for removing of the bumb stops on the axle, installation would have been faster. Expensive product, but it is a quality product and made in the USA. After install, the springs raised the rear of the truck about 2" to 3" when unloaded. Best part is that the springs didn't cause the truck to ride rough when unloaded. 21988



- SSA28
by:

Review from a similar Sway-Control in Vehicle Suspension


Arrived in three days. Took me and the wife 48 minutes to install. Lifted the rear of a 2012 F150 1 3/8". We like the ride better with the upgrade. Loaded with 1500# handles great. Etrailer is always great to order from. 690764



- SSA28
by:

Review from a similar Sway-Control in Vehicle Suspension


Very easy install , used this product on previous vehicles and they do the job. etrailer is an excellent company to deal with! 360918


Comments
Fantastic
Scott H - 04/03/2018

36781

- SSA28
by:

Review from a similar Sway-Control in Vehicle Suspension


After having used partial and full ‘add-a-leaf’ kits on fleet trucks in the past, I was willing to give these a try. Having missed the stiffness of a 2500 rear end and having put 125k on a 1500 with a topper/camper shell, this was the progressive stiffness I was looking for. The vehicle sits 1.5” higher at the rear, isn’t overly stiff, alowing the Bilstein shocks to continue to do their job, properly. Adding the tow behind camper, along with a loaded bed, far less body sway without a compromised ride. I also utilized the SumoShocks (front and rear), for some time and I love them. Having everything together, as a package, works great for me when towing, the bed is loaded down and when I’m traveling 2hrs at a time from place to place, as a highway truck. This will take some serious C clamps (8” from hardware store) and some mechanical aptitude if using a jack and stand(s) in the garage. Overall, not too strenuous or hard. Nothing intimidating. I’d definitely recomend to anyone wanting to help tired leaf springs or when reducing body roll. 557350


Comments
The Sumo Springs continue to provide wonderful results. Many friends with 2500 trucks and onlookers at campgrounds are amazed when we tow our 38’ trailer weighing around 8k lbs when loaded, plus the truck bed loaded with wood and bikes, etc, the family and dog in the cab... All with little to no squat! The ride stays consistent to the 2500 feel I like and it allows me to keep my ol’ beater with high miles and a few thousand miles. I definitely recommend the Sumo Springs and their products. Again, having had their products on other vehicles with more than happy results, I don’t foresee ever purchasing a vehicle and not, at the least, including the rear bump stop supports and adding the leaf kit from there.
Thomas - 08/24/2019

60356

- SSA29
by:

Review from a similar Sway-Control in Vehicle Suspension


E-trailer agent James helped find trailer tow package that fit my 2011 Ford Transit Connect and provided appropriate install video. You're a huge help James. The install went smoothly without a hitch (lol). 650553



- SSA5MTKT
by:

Review from a similar Sway-Control in Vehicle Suspension


882646



- SSA7MTKT
by:

Review from a similar Sway-Control in Vehicle Suspension


It arrived earlier than I had expected I installed it the following day, very easy to install noticed a gain in drivability with in 50 ft on sway control. I haven’t hitched up to either trailer 6x12 enclosed and 5x10 dump but I’m sure it will be better experience. I’ll let you know. Thanks! 877029



- SSA4
by:

Review from a similar Sway-Control in Vehicle Suspension


Installed on a 2016 Toyota Tundra. I pull a 28 foot aluminum frame utility trailer. Hauls like a 3/4 ton with super spring. Rides like 1/2 ton without load. I have put 1 ton load on truck with no trailer and the truck drove fine. The front of truck at tires rose 1/2 inch. Installation requires the frame to be lifted off the axel.at rear of vehicle. I like this system better than air shocks as there is no adjustment after installation. I would purchase again. 865324



- SSA28
by:

Review from a similar Sway-Control in Vehicle Suspension


Just received the order from E trailer. Very fast delivery. Have not had a chance to install the springs. 864629



- SSA1MTKT
by:

Review from a similar Sway-Control in Vehicle Suspension


I received the kit two days earlier than expected; which, in itself was very reasonable (7 days). I received the springs on Monday and installed them on Tuesdays. The lift is unquestionably and under load quite obvious! In the coming days I will naturally be testing it for performance, but for now I'm very pleased!!! 864556



- SSA16MXKT
by:

Review from a similar Sway-Control in Vehicle Suspension


If you watch the video on installation from the model - SSA13MXKT, you will see how to install them, that's why I don't have any pictures. It took me about 2-1/2 hours to install. The brackets were a plated color and I painted everything black before installed them. My truck was pretty clean underneath so I think they look better. I installed them on a 2019 GMC Denali HD 2500 Duramax. As far as handling, after the install, I did not notice too much difference empty. But - when I had my 5th wheel hooked up, there was a difference, not a significant amount, but a difference. My pin weight on the trailer is roughly 1,350 lbs. also. Now for the dimensions here is what I got - I would say, these dimensions are within an 1/8". The dimensions were taken from the center of the tire to a line on the truck, front and rear. BEFORE INSTALL - Rear - 43" Front - 40-1/8" AFTER INSTALL - Rear - 44" Front - 40-1/16" WITH MY CAMPER HOOKED UP 1,350 lbs. Pin Weight (CAT Scale Certified) Rear - 42-5/8" Front - 40-1/8" As you can see, it dropped the truck down 1-3/8". Before the install my truck would "squat" approximately 2-1/2" So, they made a big difference, an 1-1/8" difference. Before the install, the front was about (I never got a good measurement on that) 41". 864295



- SSA15MTKT
by:

Review from a similar Sway-Control in Vehicle Suspension


861572


35
91
Show More Reviews

Ask the Experts about this SuperSprings Vehicle Suspension

  • Do SuperSprings Replace Factory Springs on 2019 Ford F-450 With Factory Upper Overload Springs
    Those are good questions, and the SuperSprings Custom Suspension Stabilizer and Sway Control Kit # SSA25 will not replace the factory springs on your 2019 Ford F-450, they work in tandem along with your springs, which will not be removed. These are absolutely going to improve your ride because they can be customized for your application whether that means you have a constant heavy load and need constant support or simply want to get a more balanced suspension if you tow or have a heavy...
    view full answer...
  • Does SuperSprings for 2020 Ford F-450 Super Duty Replace Entire Leaf Spring
    The SuperSprings # SSA25 are a really solid choice for suspension enhancement for your 2020 Ford F-450 and they do not replace your leaf springs. They actually install on top of the springs you have now and provide additional support. If you check out the picture I attached you can see how it installs.
    view full answer...
  • Suspension Enhancement Recommendation to 2005 Jayco Seneca Built on Chevy Kodiak 5500
    For your 2005/2006 Jayco Seneca that's built on Chevy Kodiak 5500 chassis we have the SuperSprings suspension kit part # SSA25. This type of suspension enhancement is great because it also works as almost a sway bar to help improve the handling of the vehicle as well as increase the suspension support.
    view full answer...
  • Plate Used To Install SuperSpring Kit SSA25 in 2017 Ford F-250
    I attached a picture that shows how the PSP7 plate of the # SSA25 is installed on your 2017 Ford F-350. Both sets of the plates would not be needed.
    view full answer...
  • SuperSprings Suspension Stabilizer for 2017 Ford F-250
    I confirmed with SuperSprings that the Suspension Stabilizer and Sway Control Kit # SSA25 will fit your 2017 Ford F-250. The kit will work on your truck with 4-wheel or 2-wheel drive.
    view full answer...
  • SuperSpring Suspension Kit Recommendation for 2005 Chevy Kodiak
    We have Superspring kits that are a confirmed fit for your 2005 Chevy Kodiak. For the rear axle you'd need the part # SSA25 and then for the front you'd want the # SSF-281-47 which is the leaf spring style. This setup gives you a SumoSpring in the front and the Superspring leaf style out back. There isn't a Sumo for the rear of your vehicle so this would be your best and only fitting option.
    view full answer...
  • Recommendation for Rear Suspension on 2019 Ford F-250 With Constant Weight In The Bed
    With constant weight in the bed of your 2019 Ford F-250, I recommend using the Firestone # F2605 for 4WD or # F2600 for 2WD. The air springs are the only system that are really height adjustable for load leveling. Other options help support, but the air spring add support and load leveling. This will absolutely give you the 2 inch height you desire. If you want the ability to adjust the air pressure at any time, I recommend using the Firestone Air Command II - Analog Gauge w/ Heavy...
    view full answer...
  • Suspension Enhancement Recommendation for a 2009 Ford E-450 Van Motorhome Dually V-10
    We do have some options for your 2009 Ford E-450 motorhome. I recommend going with SuperSprings Suspension enhancement, # SSA25, which is for heavy duty application. These springs will help to reduce sway and prevent the vehicle from sagging when carry heavy loads. I have included a link to the installation details for reference.
    view full answer...
  • Suspension Enhancement Recommendation with Better Ride Quality than Timbren on 1999 Dodge Ram 3500
    I definitely feel your pain. I installed Timbrens on our 2002 Dodge Ram 2500 and while they do an excellent job with heavy loads, the unloaded ride was not something to be desired. My kit came with a 1 inch spacer that I had to take out. Your kit doesn't come with a removable spacer, so your next best option would be to go with a different system. If you have room on the outside of your frame just above your axles, then I recommend moving to air bags with the Firestone Ride-Rite Air...
    view full answer...
  • Rear Suspension Helper Springs for a 2018 Ford F-450 Dually with OEM 5th Wheel Package
    Air Lift system # AL89399 is designed to fit a 2018 Ford F-450 Super Duty with 4-wheel drive. The upper brackets on this kit mount to the bottom of the frame rails on your truck so it will not interfere with the factory 5th wheel prep package. But the problem is that while this system fits the 2017 model year dually it does NOT fit the 2018 dually. What I recommend is to use a different system that is also compatible with the 5th wheel prep package and that fits dually models. You can...
    view full answer...
  • Suspension Enhancement Recommendation for a 2005 Ford F-450 with Snowplow Package
    Adding an air bag kit to your 2005 Ford F-450 will definitely help improve the ride quality whether you are towing your camper or not. The only thing that I'm a little concerned about is the fitment. Since both the Firestone Ride-Rite # F2176 and the Air Lift LoadLifter # AL57345 have brackets that install on the inside of the frame opposite of where 5th wheel base rail brackets install they may not fit together. I have attached a photo of the Ride-Rite system that you can reference. I...
    view full answer...
  • How to Adjust Ride Height on the SuperSprings Custom Suspension Stabilizers
    There are two levels of adjustment on the SuperSprings Custom Suspension Stabilizer and Sway Control Kit part # SSA46 for your 2017 Ford F-350. The adjustment is located on the shackle that attaches the roller to the bottom of your leaf spring. There are two bolt holes on the shackles. The bottom hole will provide the least amount of support which will in turn cause the vehicle to be raised about an 1" from factory while unloaded. The top bolt hole will provide the most amount of support...
    view full answer...
  • Is Drilling Required to Install the TorkLift StableLoad Rear Suspension Upgrade # TLA7311
    The TorkLift StableLoad Rear Suspension Upgrade # TLA7311 that you referenced will require you to drill the leaf springs for installation. We do offer a few other solutions for your 2001 Dodge Ram that will allow you to install them without drilling into the leaf springs. You could use the SuperSprings Custom Suspension Stabilizer and Sway Control Kit # SSA25 if your have a 2500 or 3500. If, however, you have a 1500 then you can use part # SSA5MTKT instead. These stabilizers will supplement...
    view full answer...
  • Can Air Bags be Installed on a 2001 Dodge Ram 2500 4x4 with Curt Gooseneck C60734
    The upper brackets for Firestone air bags # F2220 bolt through the frame but the frame brackets for Curt gooseneck hitch # C60734 do not have holes in them to accommodate this so this particular set up will not work together. If you could tell me if your Ram is a 1500, 2500, or 3500 as well as if it is 2- or 4-wheel drive, and if you already have the gooseneck hitch or air bags (or both or neither) I can see if we have some combination that will work for you.
    view full answer...
  • Suspension Enhancement for 2018 Ford F-450 Super Duty
    You are correct that Air Lift specifies the # AL88399 cannot be used on dual rear wheel models, which is what the 2018 Ford F-450 pickup has standard so they would not work for your truck. The best suspension enhancement for this truck is going to be the SuperSprings Custom Suspension Stabilizer and Sway Control Kit # SSA25; I checked with SuperSprings and this kit is a fit for your truck. This kit is a helper leaf spring which has different settings which allow you to choose the best...
    view full answer...
  • Can Air Bags be Installed on a 2013 Ford Super Duty with Reese Elite Series 5th Wheel Install Kit
    Based on where the Reese Elite Series kit # RP30126 installs you will not be able to install air bags due to the mounting requirements of the upper air bag brackets. I checked several brands and came to the same conclusion with all of them. But there are alternatives to air bags. One option is a set of SuperSprings # SSA22 which will provide additional support, reduce sag, and increase vehicle stability. There is also a model with a little more capacity, # SSA25, rated at 3,300 pounds...
    view full answer...




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Info for this part was:

Video by:
Andrew K
Written by:
Tricia G
Expert Research:
Jameson C
Installed by:
Kathleen M
Installed by:
Robert C
Updated by:
Mary E
Updated by:
Noah M

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