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GMC Sierra

Heavy-duty suspension solutions engineered for the demands of commercial fleets, upfitted work trucks, and towing applications. SuperSprings International upgrades deliver reliable performance for GMC Sierra 1500, 2500, 3500, and 5500 HD models—enhancing stability, comfort, and control without the need for air systems, compressors, or ongoing maintenance. Designed for OEM integration and fleet retrofit programs, these bolt-on systems provide lasting, maintenance-free support mile after mile.

Why Sierra Fleets and Upfitters Upgrade
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Purpose-built suspension solutions designed to improve stability, handling, and comfort across every GMC Sierra platform—from light-duty 1500s to heavy-duty 5500s.

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Stay Level Under Load

Maintain consistent ride height and balance when towing equipment, carrying upfit bodies, or transporting heavy cargo.

Protection from Harsh Impacts

Prevent bottom-outs and reduce chassis strain with progressive bump stops that cushion heavy loads and unpredictable road conditions.

Sharper Handling

Progressive spring technology absorbs impacts and reduces sway, improving control on uneven terrain and during loaded maneuvers.

Simple, OEM-Friendly Installation

Bolt-on design installs easily with no air systems, compressors, or adjustments—ideal for fleet retrofits and OEM production environments.

Engineered for Performance and Durability

Sierra Suspension—Smarter Under Load

SuperSprings International suspension systems are precision-engineered to integrate seamlessly with GMC Sierra chassis and suspension geometry, delivering greater load control, stability, and comfort without affecting factory ride quality. Whether your trucks tow, haul, or operate in demanding commercial environments, these upgrades provide proven, maintenance-free performance.

✅ SuperSprings Helper Springs – Self-adjusting steel add-a-leafs that automatically engage under load to maintain ride height and reduce sag for fleet and upfit vehicles.
✅ SumoSprings Rebel – Two-piece microcellular polyurethane springs offering progressive load support, full suspension articulation, and exceptional control under heavy use.
✅ SumoSprings Solo – Progressive bump-stop replacements that cushion impacts, limit rebound harshness, and protect chassis components from excessive strain.

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Precision Fit for Every Sierra Model

Made for Your Sierra. Built to Last.

From City Streets to Remote Job Sites — Built for Every Sierra Application
SuperSprings International suspension systems are engineered specifically for GMC Sierra chassis—from half-ton daily drivers to heavy-duty 5500 fleet workhorses. Each system is precision-fit to the vehicle’s factory suspension geometry, maintaining proper ride height, articulation, and handling under all load conditions.

Manufactured from premium, high-durability materials, these upgrades withstand the rigors of commercial hauling, towing, and off-road operation. Installation is fast and straightforward—no cutting, welding, or modifications required—making them ideal for OEM integration, dealer retrofits, and fleet service programs. Experience enhanced stability and control from the very first mile.
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What Our Customers Are Saying

I tow a 27-ft enclosed trailer for work and was getting way too much rear squat. Installed the black SumoSprings and it’s a completely different truck — level stance, smoother ride, and way less sway in crosswinds. Unloaded ride is still comfortable, and the install was a simple afternoon project.

Chris Dalton

Chevrolet Silverado 1500

I haul heavy equipment almost daily, and my Sierra would bounce and bottom out over rough roads. The yellow SumoSprings have eliminated that problem completely. The truck now feels planted and stable no matter the load. Even when empty, the ride is still smooth. One of the best upgrades I’ve made for towing and hauling.

Daniel Ortiz

GMC Sierra 2500HD

Pulling a large fifth wheel used to mean a lot of rear sag and some uncomfortable sway on the highway. The SumoSprings fixed both instantly — now it tows level, stable, and feels far more controlled. Install took just over an hour, and there’s nothing to maintain. Wish I’d added these sooner.

Kevin Marshall

2024 Chevy Silverado 3500HD High Country

Ready for Anything. Built as Tough as Your Sierra.

Engineered for Real-World Demands — From Job Sites to Remote Terrain

Fleet and Jobsite Durability

Protect chassis components and reduce bottom-outs when operating on rough or uneven terrain under constant payloads.

Commercial and Overland Builds

Provide stable load support for service racks, tool systems, and specialty upfits—or for adventure gear and rooftop setups.

Heavy-Duty Towing

Maintain control, reduce sway, and improve braking stability when hauling trailers, campers, or heavy equipment.

Everyday Fleet Confidence

Deliver predictable handling and ride comfort for work crews and service operators—even under full load conditions.

Better Balance. Better Control. Better Ride—Every Day.

Upgrade Your Sierra Fleet Today

From demanding worksites to long-haul towing and daily operations, your GMC Sierra deserves suspension that performs as hard as you do. SuperSprings International’s bolt-on, maintenance-free systems deliver the stability, comfort, and control your fleet needs—without downtime or ongoing maintenance. Built for OEM integration, dealer retrofit, and commercial use, these upgrades protect your investment and keep your trucks running reliably mile after mile.

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Explore Other GMC Suspension Solutions

Discover engineered suspension upgrades designed for reliability, load support, and long-term fleet performance across every GMC platform.

GMC Canyon

Progressive suspension support for light-duty commercial, delivery, and service applications—ideal for fleets needing maneuverability and load control.

GMC Savana

Enhanced load stability and sway reduction for cargo, passenger, and cutaway configurations—engineered for fleet and upfitter installations.

GMC Yukon

Progressive bump-stop and coil-spring upgrades that enhance handling, reduce sag, and improve passenger comfort for law enforcement, shuttle, and executive transport fleets.

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