backed by a lifetime guarantee

GMC Sierra

Get reliable suspension performance for towing, hauling, and daily driving — all without the hassle of air systems, maintenance, or complicated installs.

Why Sierra Owners Upgrade
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Targeted suspension improvements for real-world driving challenges.

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Stay Level Under Load

Stay level and in control when towing trailers, hauling gear, or loading up for a trip.

Sharper Handling

 Tackle trails without harsh bottom-outs. Progressive bump stops absorb impacts while keeping control.

Protect Against Bumps & Bottom-Outs

Progressive springs absorb harsh impacts—so your suspension stays intact even on rough terrain.

Simple, OEM-Friendly Install

Bolt-on kits install with basic tools—no upkeep, no downtime, and built to last.

Engineered for performance and durability.

Sierra Suspension, Smarter Under Load

Our top-rated suspension upgrades are designed to work flawlessly with your Sierra’s factory setup. They boost load capacity and ride quality—whether you're towing, hauling, or hitting the backcountry—without compromising control.

✅SuperSprings Helper Springs – Self-adjusting steel add-a-leafs that activate under load for enhanced support.
✅SumoSprings Rebel – Dual-stage polyurethane springs offering progressive resistance and articulation.
✅SumoSprings Solo – Advanced bump-stop replacements that smooth impacts and reduce rebound harshness.

Find the Right Kit for You

From urban streets to remote trails, tailored for your model and workload.

Made for Your Sierra, Built to Last

Precision Fit for Every Sierra
We design each kit specifically for GMC Sierra suspension geometry, whether it's half-ton daily duty or HD trailer duty. Crafted from premium materials, our upgrades preserve factory ride height, articulation, and handling—even in the toughest conditions. Installation is straightforward—with no cutting or welding required—so you can upgrade today and feel enhanced stability from your very first mile.
Find the Right Kit for You

What Our Customers Are Saying

Awesome product and such an ingenious idea! Not only did it improve the stance of my Sierra, but it also gave it a smoother, more controlled feel over rough roads. Couldn’t be happier with the upgrade.

Kris Nelson

GMC Sierra 1500

As a welder, I carry around 800 pounds in the bed of my Sierra 1500 every day. The rear yellow SumoSprings lifted the rear end perfectly, completely eliminating body roll and making the truck far more comfortable, especially when cornering on winding country backroads. Adding the front helper springs took it to the next level — if you don’t have them, you’re missing out. 5/5 stars, no question!

Wyatt Robinson

GMC Sierra 1500

These upgrades stiffened up the suspension in a way that feels solid and controlled, without making the ride harsh. The truck now soaks up bumps and potholes more smoothly and handles noticeably better in all driving conditions.

Joe Daigneault

GMC Sierra 1500

Ready for Anything, Rugged as You Are

Heavy-duty towing, daily tasks, and off-road adventures—covered.

Jobsite Durability

Protect your suspension from frequent bottom-outs on rough terrain.

Backcountry Builds

Support racks, overland gear, and rooftop tents without sag.

Heavy Towing

Maintain control when pulling boats, campers, or trailers.

Daily Confidence

Keep a smooth, safe ride even when the bed is packed.

Better balance. Better control. Better ride—every day.

Upgrade Your Sierra Today

Whether it’s for work, adventure, or daily errands, your Sierra deserves to perform at its best. Our maintenance-free, bolt-on suspension upgrades deliver protection, comfort, and control—miles after mile.

Find the Right Kit for You

Explore Other GM Truck Products

See upgrades designed specifically for your truck.

Chevrolet Silverado

Load support, towing stability, and ride improvement for Silverado 1500, 2500, and HD models. Popular upgrades include SuperSprings Helper Springs, SumoSprings Rebel, and SumoSprings Solo.

Back to GM Truck Main Page

Browse the complete lineup of GM truck suspension upgrades—all in one place.

Find the Right Kit for You

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