bing tracking image
  1. Vehicle Suspension
  2. SuperSprings Intl
  3. Leaf Springs
  4. Rear Axle Suspension Enhancement
  5. Standard Duty
SuperSprings Custom Suspension Stabilizer and Sway Control Kit
Special Savings on Select SuperSprings Items. See Cart for Savings.
SuperSprings Intl

SuperSprings Custom Suspension Stabilizer and Sway Control Kit

Part Number: SSA46
In Stock
ChristmasTree SantaHat Arrives before Christmas SantaHat ChristmasTree
$648.99
Retail:$781.71
You Save: $132.72
Vehicle Suspension

Will this fit?

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

Add to cart
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

3,500-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. Great Prices for the best vehicle suspension from SuperSprings Intl. SuperSprings Custom Suspension Stabilizer and Sway Control Kit part number SSA46 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (257)
  • Q & A (0)
  • Photos

SuperSprings Intl Vehicle Suspension - SSA46

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

3,500-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
  • Extend the life of brakes, tires, and factory suspension
  • Made in the USA


Specs:

  • Weight capacity: 3,500 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.



SSA46 Super Springs Leaf Spring Suspension Enhancer - Anti Sway

Installation Details SSA46 Installation instructions

This Product Fits The Following Vehicles




Customer Satisfaction Score:


Customer Reviews

SuperSprings Custom Suspension Stabilizer and Sway Control Kit - SSA46

Average Customer Rating:  4.6 out of 5 stars   (257 Customer Reviews)

3,500-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.

by:
2019 Ford F-250 Super Duty

I wasn't expecting them today, Very fast delivery. I can now get the customer back on the road faster because of the quick delivery. Thank You for the prompt service!



by:

This product is very heavy duty and very well made. It is very simple to install. The service was great and was delivered earlier than expected. The experience was great.

Ritch profile picture

Ritch

8/12/2021

It still working Great. Carrying the loads like Desscription stated



by:

Julian profile picture

Julian

2/23/2023

It works good only problem is rubbers in between springs rip after awhile and super springs start shifting



by:
2021 Ford F-350 Super Duty

Katrina B. profile picture

Katrina B.

10/7/2022

I see that you gave your experience with etrailer 1 star. If you give me more information about why you are disappointed in us, I will be happy to assist you.



by:
2017 Ford F-350 Super Duty

very quick service



by:
2018 Ford F-350 Super Duty



by:



by:



by:
2019 Ford F-350 Super Duty



by:

I used the SuperSprings to help support my Slide In Camper for my 2500 Chevy. They support good. I have Timbren installed also, but were bottomed out. After adding the SuperSprings with the Timbren the camper is supported good. The truck sits and rides level



by:

Installing these on a 2020 F250 was easier than I thought it would be. I was able to get the springs on whit the center piece and the front shackle bolted without jacking up the truck. I had to jack the frame up a few inches on each side to get the back shackle bolt through. I put the shackle bolts through the bottom holes since I only need the extra support when I tow. I recommend air / power tools for the shackle nuts and it doesn’t hurt using them for the center bracket u bolts. They are lock nuts and they have a long way to run on for each bolt. I did have to bend my parking brake cable hangar out a bit for one of the shackle bolts to clear the cable. The truck seems to sit a little higher in the back. Maybe an inch or so. The ride empty seemed the same except it felt like it didn’t roll quite as much when turning. Rolling over a lip at the end of our driveway the extra stiffness was noticeable, however. I won’t know how well they really work until I get my fifth wheel hooked up.



by:

This product did exactly what I needed. Lift the RV up to unloaded height. I have not exceeded the 12500 GCWR but the rear end was dragging like it was severely overloaded. It was a very tight fit because the mud flap framing and gas lines were almost in the way. An entire day later with a couple of clamps and sore wrists at max setting fixed the sag perfectly! I wish I had before and after pictures. I can almost fit my head in the wheel where I could not get my arm in before.



by:

Had a problem with parts missing was taken care of and parts were sent right away I buy everything I need for my trucks and trailers from y’all quick shipping and great help

Thank Yoi



by:

They increase the carrying capacity of the stock springs by adding an additional leaf. We drive our van with most of the load above the rear suspension and it was bottoming out on occasion. Works as advertised; no more bottoming out! It is a bit of a struggle to install, so a professional may be needed



by:

No issues with install on a 2023, E350 Class C motorhome.
After chalking the front wheels, I used two 3 ton floor jacks with 13” 6x6 blocks just behind the springs to lift the frame and rear tires off the ground to remove the wheels. For safety, 3 ton jack stands were put under the axles during spring installation
After installing the springs per manufacturer instructions, two 1/2” x 10” pieces of all thread with drilled flat bar were used to compress the front end spring.
With the least amount of preload it raised the back a good inch.
The 800# trailer tongue weight will be the next test to see if more preload is needed for a level ride height.



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.



by:

The install was pretty straightforward and so far they are doing exactly as they should. The packaging was less than desirable though. The box arrived, opened on one end and the springs hanging out of it. Both plastic bags with the smaller parts were ripped open as well. One nut was missing but fortunately I was able to match it up with what I had on hand.



by:

I have used the Superspring product on many Mercedes 2500 Sprinters.
The factory springs typically struggle to support the laden weight of the vehicle after it has been built out.
This helper spring is an excellent option to increase the capacity of the sprung weight in the rear of the vehicle.



by:

These worked great crossing the country last month.



by:

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:

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:

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:

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.



by:

Overall, the installation of the SuperSprings kit went pretty well. The instructions sent with the kit were not all that clear, but the info on etrailer's website saved the day. Can't wait to put the camper back on the truck and see how it rides!



by:

Great product, fast shipping. My only complaint is the package was delivered with both ends of the box ripped open. Luckily no missing components


25
257
Show More Reviews

See what our Experts say about this SuperSprings Intl Vehicle Suspension

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 Jameson C
Expert Research:
Jameson C
Employee Cole B
Installed by:
Cole B
Employee Robert C
Installed by:
Robert C
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

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.