SuperSprings Custom Suspension Stabilizer and Sway Control Kit
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2007 Ford Escape
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2007 Ford Escape
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When you’ve got a heavy trailer, camper, or bed load weighing you down, these helper leaf springs give your rear suspension real muscle. The SuperSprings Custom Suspension Stabilizer and Sway Control Kit adds 4,400 lbs of extra support by mounting right above your factory leaf springs. They keep your ride level, prevent sagging, and help your suspension handle the weight without bottoming out. The result is steadier steering and braking when you’re towing or hauling something serious.
Crosswinds, passing semis, and sharp corners can make a loaded vehicle feel loose. These springs act like sway bars by keeping your OEM leaf springs from twisting under stress. The design reduces sway by up to 30 percent, so you stay more stable through curves and gusty highway conditions. It makes a big difference when wind or weight shifts try to move you around—you feel planted and in control instead of fighting the wheel.
You don’t need to crawl under the truck to adjust anything or deal with airlines and compressors. These SuperSprings bolt directly on top of your factory springs with no drilling required. Once installed, they automatically engage when the load demands it. That means no air pressure checks or maintenance—just a solid mechanical system that works whenever it’s needed and stays out of the way when it’s not.
By reinforcing your existing springs and spreading out the cargo weight through the frame points built for heavy loads, these helper springs take stress off your factory suspension. That helps extend the life of your brakes, tires, and other parts while keeping traction and ride comfort better than rubber or polyurethane bumpers. It’s a simple bolt-on system that adds real durability for anyone who regularly tows or hauls.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hello everybody. This is Jeff at etrailer.com. Today we gonna take a look at the super springs custom suspension stabilizer and sway control kit. Now this is a custom fit part. It is designed to fit the 2019 and newer Chevrolet Silverado and GMC Sierra 4,500, 5,500 and 6500 trucks, and also the International CV Series trucks and on a custom fit part like this, I always like to recommend for you to go to our website, use the fit guide put in your year and model of vehicle and it'll show if this'll work for your application. Now, these are additional help relief springs, that'll add support and sway control to your existing OEM suspension.
They'll reinforce your vehicles rear suspension, with these extra leaf Springs that'll prevent sagging and help reduce sway by up to 30%. They work like sway bars to stabilize your OEM springs and keep them from twisting. They'll help compensate for windy conditions, wind turbulence from big rigs and even weight shifts from cornering. This'll lift your vehicle when you're carrying a heavy load and prevent any bottoming out and they do install very easily. They just basically bolt on above your existing factory springs with no drilling required.
Placing these leaf springs above your factory springs will help keep the OEM springs from twisting. So the super springs will act like a sway bar, reducing the body roll that makes driving more difficult and dangerous, and it requires no maintenance, there's no tubing or air pressure to monitor or adjust like air springs. These help release springs will respond automatically to the load you carry. So there's no need to crawl under your truck to adjust some. These do help extend the life of your brakes, your tires, and your factory suspension.
And they are made in the USA. Few specs on this, the weight capacity is 4,400 pounds. Now, one thing to remember that these super springs will not increase your vehicle's weight carrying capacity. Does come with everything shown here, even a nice set of instructions, that'll show you and describe how these install. But that should do it for the review on the super springs custom suspension stabilizer and sway control kit..
Ratings & Reviews
2013 Toyota Tundra 4x4. Installation went well in my garage with a medium sized C-Clamp. The ride feels that same as stock. Lifted the rear 1.5" which helped off set the 2.5" lift in the front from Fox 2.0 shocks. I have not hauled a load yet.
I installed the springs in a little over an hour but have yet to put our 15,500 lb 5th wheel RV on the truck. The pin weight is around 2,800 lbs when she is fully loaded, so we will see if these help us with the sway and porposing, also the side weight when starting into a curve.
Our order arrived promptly and in good order. We have used these springs in the past and this is a repeat order for our inventory.
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.
These leaf springs works great !! More stable my van but I would like that it brings up an inch !!! Great buy
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!
I have the Yakima EXO Swing Away Storage System w/ 2 Enclosed Cargo Carriers - 2" Hitches on my 2025 Airstream Interstate. They were causing the van to sag. The Springs went on Fairley easy and provided the lift I needed.
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.
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.
Added these to my Mercedes air stream 19x class b van that already has 2 leaf springs. Had swaying issues at 60MPH and up. These put a stop to it right away and kept from sagging in the rear when loaded up with all our gear and water tank full. I have them on the mid setting. My van is 4wd and already lifted so didn’t raise it more than 1/2in. Still has a smooth ride and no big jolts like air bags or sumo springs.
I bought these a year ago so not sure if anything has changed Bad thing is they are slightly too long, Just enough to touch the wheel well and rub the under coating off. If you’re going to install yourself, I found a good you tube install. The U-bolts for install are too short. Need 2 forged C-clamps.
These are a 100% buy, don’t mess with air bags or sumos. These adjust themselves with load or no load.
I bought these as part of my suspension modifications . I had them installed on my Ford F350 SB . I have an Arctic Fox 865 truck camper. It’s a heavy camper so to minimize sag and sway I installed Timbren bump stops, a hellwig bigwig sway bar,Torque lift stable loads. That improved things quite a bit. I installed these super springs last ,they further improved sway and improved the overall stability and ride quality.
I definitely feel these were worth purchasing. I could not decompress the existing leaf springs enough to install these myself so had them professionally installed.
I would recommend them for hauling a truck camper.
Without towing, the truck seems to ride a little smoother. The real test will come when I hook up my fifth wheel. Very simple to install.
Unbelievable! Why didn’t I do this sooner? I’ve never seen daylight between my tires. Gaines two inches and rides soooo much better.
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.
The shackles on each end were too narrow to clear the spring clips so locating them was harder than need be. The instructions had a mistake, locating the front shackle incorrectly. Installed as they are. Improved ride a lot. Glad I got them.
Fast delivery, free shipping, the springs went on pretty easy, had some problems with install due to my vehicles configuration, Travato59K,not the springs. This was a 2024 RAM Promaster3500, raised it up 1.75” on the lower setting. Noticeable help with sway problem.
Exactly what I needed and what I wanted very fast shipping thanks E trailer
While use the middle setting it only gave it a slight lift with a minimal unloaded bounce. Usually never overload the trucks maximum capacity but needed to for a short distance and with approximately 1300 pounds in the bed, the truck didn't squat at all.
Worked just like SuperSpring said, they Stabilized the load and reduced the sag with a very heavy Truck Camper also the ride without the camper is not horrible just a little stiffer.
Fit great on my 2025 Ram. I makes a big difference pull my 14000lb 5th wheel. Highly recommend these for any heavy loads. I have put these on 3 other trucks and they are maintenance free. You don't need to worry about the load you are hauling.
This was a great addition to the suspension of my 2021 Ford E350 Class C RV. The rear springs were at almost max load. This raised the chassis at the rear axle almost 2-inches. This is a heavy duty spring and I had to fabricate a tool to compress the spring.
Easy install and gained 3-4” of clearence on rear bumper
Fairly easy to install. Definitely improved suspension squat and handling. Had for a year now, they are still were I left them. No movement nor adjustment necessary.
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