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SuperSprings Suspension Stabilizer and Sway Control Kit - OEM Leaf Springs Above Axle

SuperSprings Suspension Stabilizer and Sway Control Kit - OEM Leaf Springs Above Axle

Item # SSA8MTKT
Our Price: $559.98
Vehicle Suspension

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1,500-lb Capacity. Install these helper leaf springs above your vehicle's rear factory leaf springs. They reduce sway and prevent sagging, which is perfect for towing or hauling heavy loads. Designed for OEM springs that sit above the axle. Great Prices for the best vehicle suspension from SuperSprings Intl. SuperSprings Suspension Stabilizer and Sway Control Kit - OEM Leaf Springs Above Axle part number SSA8MTKT can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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SuperSprings Intl Vehicle Suspension - SSA8MTKT

  • Leaf Springs
  • Rear Axle Suspension Enhancement
  • SuperSprings Intl
  • Light Duty

1,500-lb Capacity. Install these helper leaf springs above your vehicle's rear factory leaf springs. They reduce sway and prevent sagging, which is perfect for towing or hauling heavy loads. Designed for OEM springs that sit above the axle.


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 while 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
  • Customizable - 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
    • Because factory springs set above the axle, an additional mounting kit is included for installation
  • Require no maintenance - no tubing or air pressure to monitor or adjust like air springs
  • Extend the life of brakes, tires, and factory suspension
  • Made in the USA


Specs:

  • Weight capacity: 1,500 lbs
    • SuperSprings will not increase your vehicle's weight-carrying capacity
  • U-bolt length: 4"
  • Limited Lifetime warranty
  • 30-Day satisfaction guarantee


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 Ford 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 semitruck and when 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.


This suspension stabilizer kit is perfect for trucks towing fifth wheels, campers and gooseneck trailers.


SuperSprings diagram of springs set above and below the axle

An additional mounting kit is included for installation with factory springs that set above the axle.


For vehicles with factory leaf springs that set above the axle, this mounting kit ensures that SuperSprings operate silently when the vehicle isn't loaded. When factory springs set below the axle, the axle itself serves as a fulcrum for the helper leaf springs. However, for vehicles that have OEM springs that set above the axle, the 2-inch brackets in the mounting kit act as fulcrum points on the underside of the SuperSprings. Furthermore, the shackles at the ends of the helper springs hold them in place and pivot as the load is transferred to the SuperSprings. Because there is minimal preload tension in the installed SuperSprings, you get a quieter ride.



SSA8MTKT Super Springs Leaf Spring Suspension Enhancer - Anti Sway - Includes MTKT SuperSprings Mounting Kit

Installation Details SSA8MTKT Installation instructions

This Product Fits The Following Vehicles




Customer Satisfaction Score:


Customer Reviews

SuperSprings Suspension Stabilizer and Sway Control Kit - OEM Leaf Springs Above Axle - SSA8MTKT

Average Customer Rating:  4.6 out of 5 stars   (179 Customer Reviews)

1,500-lb Capacity. Install these helper leaf springs above your vehicle's rear factory leaf springs. They reduce sway and prevent sagging, which is perfect for towing or hauling heavy loads. Designed for OEM springs that sit above the axle.

by:
Ford

These "helper" springs made the difference between towing with our E150 Ford conversion van or buy a different vehicle. Our tow vehicle rides a little stiffer, but that was expected. It certainly gives us the confidence of towing a 26' camper.




by:

The Super Springs work great! I pull a 8,500# trailer with a hitch weight of 950# with a 2004 GMC Sierra 1/2 Ton. The truck pulls fine but even with an equalizer hitch still had some sag. The Super Springs were easy to install and leveled the rig. After a year everything still works great.


Comments
One Year later still no sag.
Howard - 11/09/2020


by:

I bought these for my 2011 Silverado 1500 crew cab 4wd, truck had a 6” lift and 35” tires. I was frequently towing a 5k pound horse trailer ( bumper pull not gooseneck ) and was getting a lot of bounce in the truck. As a honest review, I installed them ( quick and easy I add ) and removed them a month or so later. They did everything they were suppose to, sway was better, felt more In control at high speeds, and less squat on the truck. My complaint was my truck rode like a 3/4 ton truck without the trailer and I didn’t have 3/4 ton power. So I removed them to get my ride quality back, eventually selling the truck and buying a 3/4 ton. Now in another 3/4 ton for a few week, I would say it wasn’t as bad as a true 3/4 ton, but it does firm up the ride a bit. I still give it 5 stars because it did exactly what it was suppose to, super cost effective, easy to install and remove, no fabrication etc. also I requested some precise measurements on individual pieces from etrailer customer service for fitment with my lift kit and they responded same day with all measurements I needed.

Sum up if your debating, it’s easy to install, easy to remove, way cheaper than bags, adjustable, work great.




by:
2012 Chevrolet Silverado 1500

Easy install, I’m 71 years old, it took me 140 minutes to do the installation.
I haven’t towed with them yet but the truck ( 2012 GMC 1500) rides and handles much better.
These are very pricey but so far so good!




by:

Very good product easy assembling and works great




by:

Review from a similar Sway-Control in Vehicle Suspension


This was by far the easiest mod I have made to my 2019 Ford Super Duty King Ranch! Only took 45 minutes start to finish. Didn't even take the wheels off. Took some pressure off of the springs by lifting the rear end a little using the trailer hitch. Used the bottom holes on both ends and only raised the rear of the body 1 inch. Great product!




by:

Review from a similar Sway-Control in Vehicle Suspension


The spring system itself is a great product, but I’m using these on a 2021 F-150. In 2021 ford went to a mono spring design that has less arch in its resting state. I called superspring prior to ordering to verify this was the correct product and was told this was the one. After installation the springs walked all over the place under normal driving conditions and had to be constantly removed and re-situated. I’ve since had to use industrial glue to attach the spring to the rubber block that it rests on and that has solved the movement issue but in my opinion this is something that should not need to be done if the product was actually made for my vehicle. however, from a functionality standpoint they work well once they are actually held in place.


Comments
The manufacturer will reach out to you.
-- Etrailer Expert Jenny N - 03/22/2022


by:

Review from a similar Sway-Control in Vehicle Suspension


Packages arrived on time, everything was there, installation went good, I removed the rear tires to make it easier, picked the rear of the truck up by 1 3/4 inches, have not hooked up 5 th wheel yet, we will see if it helps with the bottoming out .


Comments
They work great, they improved the rear suspension so there is no more bottoming out when I pull the 5 wheel Rv .
Larry P - 10/03/2022


by:

Review from a similar Sway-Control in Vehicle Suspension


The system works great in keeping sway under control. Big trucks do not move my rig hardly at all. The ride is hard. My wife feels very little bump. She has a bad back. I love the system.


Comments
The springs worked great, reduced sway and gave better wheel control
Robert - 08/11/2022


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.




by:

Review from a similar Sway-Control in Vehicle Suspension


I got this to prevent bottoming out my truck when towing our travel trailer. Won't know for sure if this actually works until we load up. Having said that, the instructions provided with this are poor and talking with Supersprings tech support was frustrating. As mentioned elsewhere, you will need two "C" clamps to pre-load the spring and I wound up fabricating a 3" extension bracket for the brake lines; neither of which were mentioned in the instructions. I also removed the wheels to provide working space and air tools are definitely the way to go. On my '13 Tundra, the distance between the stock spring pack straps is 40" the same as the distance between the eyes on the Superspring. I was advised that the spring is mounted off-center to avoid conflict with the stock spring straps; however this in not mentioned in the instructions. This placed the Superspring about 4" forward of the center of the axel instead of centered on the axel. (see photos) This seems counterintuitive to me but we'll see. This added 1.5" in height to the rear of the truck. It took me 4 hours to install by my self, including time to fabricate the brake line extensions and dealing with Supersprings staff twice on the phone. During the second call, the tech mentioned that they get a lot of phone calls for Tundra installs, indicating to me that they already know there are issues with the product and instructions. In retrospect, I would look for a new spring pack if I was doing this again. Hopefully my suspicions are unfounded but I'm hanging on to the box just incase. Etrailer was great with the best price anywhere and quick shipping.




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.


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.
-- Etrailer Expert Mike L - 02/08/2019
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


by:

Review from a similar Sway-Control in Vehicle Suspension


Put them on a 2010 f-150 and when I put a load on the truck the super springs hit the frame. Worst money that I have ever spent




by:

Review from a similar Sway-Control in Vehicle Suspension


Just put on super springs 2019 f150 for towing a camper that is awful in wind. The installation was easy. Hoping the springs help with a stable ride. I will update when I get the camper out of storage.




by:

Review from a similar Sway-Control in Vehicle Suspension


Product worked as described. Shipping was quick (etrailer used "air" to my state, then on UPS truck)
Easy to install, not sure why they included 2 sets of polyurethane blocks (only one set fit my truck)
Don't notice any ride difference when set at lowest setting. Raised truck approximately 3/4". East to readjust for more preload if needed.
Combined these Super Springs with Timbren load handlers. So far so good.
Great improvement over stock while maintaining ride quality.




by:

Review from a similar Sway-Control in Vehicle Suspension


I bought this item for my 20 year old 37' motor home. Over the years the rear end has "squatted" down some and due to the weight of the frig, washing machine, and a small freezer all being on the passenger side, it was lower on that side. Installation was not the easiest thing, but this 70 year old was able to do it by myself, even on a gravel driveway. Installation instructions are good. Besides the drive axle, my rig has a second, "drag" axle, whose tires I had to remove to do the job. I also had to re-route a propane line. The hardest part was Step 7: "Using a heavy duty C-Clamp or SuperSprings installation tool, pull down rear of SuperSpring and install bolt,..." I used 2 C-Clamps and it was pretty tricky. I'm not sure what the price of their special tool is and I don't think etrailer sells it. I used the bolt hole that gave me the maximum lift on the passenger side and the first hole on the driver's side. The completed installation did accomplish my goal of leveling the motor home. These springs are really heavy-duty and very good quality. I have no complaints.


Comments
Well, Its two years now. didnt do much traveling in 2020. In 2021 weve mad trips two 1,500 mile round trips and everything is still working fine.Am interested in the Sumosprings for the front end.
Richard F - 08/30/2021


by:

Review from a similar Sway-Control in Vehicle Suspension


Had a pro install them to the center hole like Manufacturer suggest, rides a little firmer which I like not sloppy, Have not towed yet but looking forward to it! Great products and fast shipping.




by:

Review from a similar Sway-Control in Vehicle Suspension


I installed the springs in conjunction with the SumoSprings on my 2017 Sierra 1500 4X4. I took the wheels off and start to finish was less than an hour and a half. Very well thought out design and easy to install. The initial setting raised the back end 1.75" and was not quite stiff enough so I moved the front bolt up to the top hole, this gave me 2-1/4" lift at the wheel wells. It took the weight off the overload springs that was always loaded before. With the camper (8000 lbs) and distribution hitch the truck was barely on the overloads with the SuperSprings and then the SumoSprings kicked in as well. Between the two upgrades we towed 900 miles after the install and handling and body roll were drastically improved. USA made product that is well designed and made. Would definitely recommend either the SuperSprings or the SumoSprings as a must have upgrade if you tow a lot with a lighter suspension vehicle.




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".


Comments
After about one year, these are still working great. I typically use my truck for pulling my 5th wheel. But - even when empty, you dont really feel anything different. When the camper is on, it sure levels the truck and camper out perfectly, giving you a great ride.
Conrad - 08/19/2021


by:

Review from a similar Sway-Control in Vehicle Suspension


After listening to my new trucks squeaky suspension for almost a year and installing air bags that were useless, I tried these springs and these are the best investment I’ve made for my work truck.
No more squatting and the best part no more squeaking!




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).




by:

Review from a similar Sway-Control in Vehicle Suspension


2019 Silverado Trail Boss

Easy Installation
and definitely helps with sag when loaded, however, can be noisy on bumps and turns when unloaded due to its "floating" design. it also raised the rear end of the truck by another inch or so.

If I had to do it over again I would probably go a different route




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.




by:

Review from a similar Sway-Control in Vehicle Suspension


I usually never give a five star rating, however these were very easy to install, and have increased the spring load capability. I have found that the truck does not sag as much as before and the ride is better when pulling the camping trailer. would strongly recommend if you do not want air bags.




by:

Review from a similar Sway-Control in Vehicle Suspension


This leaf springs kit help greatly. It helps stabilized the van and gives it a much better ride. I would highly recommend this kit.



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    If the load in the cargo area of the van will fluctuate quite a bit, I'd go with an adjustable alternative like the Air Lift # AL57205 air suspension. You can easily tailor the stiffness of the springs to the load you're carrying, rather than using the jounce bumper type option like the Timbren # TGMFK15A, which typically won't come into play until there's a load being carried on the rear vehicle axle. The air bag suspension can be supplemented with the addition of an onboard compressor...
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  • Suspension Enhancement for a 2009 Ford F-150 with a 5th Wheel Trailer Hitch Installed
    Actually, there are currently no Firestone Air-Ride products for a 2009 Ford F-150. We do have other options that will not interfere with the 5th wheel trailer hitch. You can use SuperSprings Custom Suspension Stabilizer and Sway-Control Kit, # SSA8MTKT. Another option is to use a Timbren system, # TFR1502D, for a 2 wheel drive, or # TFR1504D, for 4 wheel drive. These springs install on the inboard side of the frame rails so they will not interfere with the hitch. Either the SuperSprings...
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