$492.99Ships in 1-2 weeks

SuperSprings are a simple, bolt-on, steel helper spring that eliminates rear-end sag and stabilizes sway & body roll. Built from high-grade shot peened steel, this suspension solution allows you to load up without sacrificing your ride quality. 

The SuperSpring includes a patented roller shackle on each end that allows for self-adjustment as weight is changed. This is particularly helpful as you add water, tools or heavy gear to your vehicle.

The SSA28 has an additional load leveling capacity of 1,500 lb.

Please Note: SuperSprings International products are specifically designed for vehicles equipped with factory suspension. We cannot guarantee their compatibility with aftermarket products or parts. For questions about fitment on your specific vehicle, please contact us.

Hugh Gardner
2023-05-23 09:35:52

Easy install. Eliminated sag when boat trailer hitched.

Bruce Ness
2023-05-23 09:25:59

Springs fit up easily and are providing stability with our nuCamp Cirrus 620 camper on it.

William Peak
2023-05-02 09:53:57

Easy install and fast shipping

2023-03-22 09:14:35

Very nice product. Beautiful machining on the springs and all parts were top quality. I needed a little help with the install (mostly a confidence thing) and Mark at SuperSprings called me back right away and gave me expert help and advice. After Mark's help, the install went very well and the overall results are awesome! With nearly 2K lbs weight on my the bed, the truck now only squats 2 inches as opposed to the previous 3.5 inches. Vast improvement in towing and ride quality. Thanks SuperSprings!

Daniel Arrazola
2022-11-15 10:53:06

Parts were as described and made of high quality material. Took 25 minutes to figure out how to install the first one by reading instructions step by step, the other side took 5 minutes only. It provided my truck much more strength to the leaf springs I already had. Now I am hooking up the trailer without having the truck lowering at all. And it rides so smooth. I dare to say this are better than air bags, plus slightly cheaper and 85% easier to install. Beside this seems to be a last forever item vs air bags that can deteriorate, crack or burst after 5 years. Trust me, you can’t go wrong with these super springs.

Drew Ramsey
2022-11-15 10:50:55

I can definitely feel an improvement with the springs on the back. I’m looking forward to pulling my new boat now and not having to deal with the bed of my truck sagging.

Robert Dube
2022-05-31 16:35:17

I have installed these on 2 Chevy Cube vans which haul a fair amount of weight - I like that it does not change the ride like air bags. I decided to install on my personal vehicle.

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Customer Reviews

7 ratings for the SSA28
5 out of 5

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Product Specifications

Weight 35 lbs
Dimensions 45 × 8.75 × 6.5 in
Application(s) Summary

Chevrolet Silverado 1500 4 X 2 (2014-2023) ; Chevrolet Silverado 1500 4 X 4 (2014-2023) ; Ford F-150 4 X 2 (2004-2023) ; Ford F-150 4 X 4 (2004-2023) ; GMC Sierra 1500 4 X 2 (2014-2023) ; GMC Sierra 1500 4 X 4 (2014-2023) ; Nissan NV1500 4 X 2 (2012-2021) ; Nissan NV2500 4 X 2 (2012-2021) ; Nissan NV3500 4 X 2 (2012-2021)

Spring Diameter

Spring Height



1500 (lb) Additional Load-Leveling Ability