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Heavy trailers, campers, or bed cargo can make the rear of your truck sag and throw off handling. The SuperSprings Suspension Stabilizer and Sway Control Kit adds 1,500 lbs of helper spring support above your factory leaf springs to keep your ride level when towing or hauling. As the factory springs flex under load, rollers on each end of the SuperSprings automatically engage to lift the rear and prevent bottoming out—no air lines or adjustments needed.
Crosswinds, passing trucks, and uneven roads can make a loaded truck feel loose. These helper leaf springs work like sway bars to stabilize your factory suspension and reduce sway by up to 30 percent. They keep your truck planted through curves and gusts by preventing your OEM springs from twisting under shifting weight. The result is steadier steering, better tracking, and more control when towing or cornering.
Every setup is different, so SuperSprings built in options to tune support and ride height. The adjustable shackles let you choose between several mounting hole positions. Use the upper holes for greater load support or to offset spring fatigue, the lower holes to maintain near-factory ride conditions, or a mix of both for balanced comfort and firmness. Once installed, the springs automatically adapt to changing loads without any maintenance.
You don’t need a shop full of tools to get these working. The kit bolts directly above the existing rear springs with no drilling required, even on setups where the OEM springs sit above the axle thanks to the included mounting kit. The brackets act as fulcrum points for quiet operation when unloaded, while the helper springs engage smoothly under weight. It’s a simple way to reinforce your suspension and extend the life of your brakes, tires, and factory components without adding an air system to manage.
Ratings & Reviews
Mark
3/2/2024
The Super Springs have made towing and heavy bed loads much better. I have since added the Hellwig rear sway bar which has made a vast improvement in addition to the Super Springs. My truck has never driven this good, even when it was new.
Mike L.
2/8/2019
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.
Helpful Links
Timothy
2/9/2020
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
Brooke M.
6/11/2025
That's awesome, Douglas! Great to know these have been the solution you were looking for. The Timbrens are known to be pretty stout for sure. I can totally see how these would have the right amount of give needed to support the camper and have a smooth ride :) Have you taken out the truck and camper recently?
Conrad
8/19/2021
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.
Victoria H.
11/11/2024
Hi Chris, there should've been a hardware kit for suspensions with leaf springs that sit above the axle. Please let me know if this is the hardware kit that was missing, and I can help you get this resolved.
Larry P.
10/3/2022
They work great, they improved the rear suspension so there is no more bottoming out when I pull the 5 wheel Rv .
Mike L.
10/1/2026
UPS is currently doing an investigation, once they figure out what's going on we'll get you an update. I'm very sorry for the delay.
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Howard
11/9/2020
One Year later still no sag.