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WORK, SERVICE & UTILITY TRUCKS

Factory suspensions are built for light-duty use — not the constant weight of tools, service bodies, cranes, and equipment that real work trucks carry every day. Over time, that load leads to sag, sway, and rough handling that slow down your crews and wear out your vehicles.

Built for the Load, Not the Downtime
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Everything your builds need for safer handling and dependable
performance — without the downtime.

control car

Less Sway, More Control

Reduce body roll, sway, and bounce from heavy service bodies, cranes, or tool loads. A more stable truck means smoother handling, safer operation, and less fatigue.

Stays Level Under Load

Maintain ride height under heavy or uneven weight. Keep trucks balanced, lighting aligned, and suspension components lasting longer.

Zero Maintenance

No air systems, compressors, or adjustments — just a simple, bolt-on upgrade that performs long after the job is done.

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Made in the USA

Engineered, tested, and built in the USA — trusted by builders and fleets across North America, and backed by a lifetime guarantee.

Support When You Need It. Stability When It Counts.

SMARTER SUSPENSION FOR EVERY BUILD

Work trucks don’t get easy days. They’re loaded with tools, gear, and equipment that push factory suspension past its limits — leading to sag, sway, and uneven handling.

SumoSprings are built to handle that weight without adding maintenance or complexity. Made from microcellular polyurethane, they compress progressively as load increases — soft on small bumps, firm and controlled when the truck is working hard.

The result is a smoother, more stable ride, less body roll, and better control under any load. It’s the simplest way to upgrade suspension performance across your fleet — no air lines, no leaks, no downtime.

Find the Right Kit for You

Product Spotlight – SuperSprings Helper Springs

BIG DIFFERENCE, SIMPLE UPGRADE

PERFECT FOR WORK, SERVICE, AND UTILITY TRUCKS
SuperSprings Helper Springs automatically adjust to the load — adding support only when your trucks need it. Whether they’re carrying welders, compressors, tool bodies, or heavy gear, SuperSprings help keep your chassis level, reduce sway, and improve control under load.

They bolt directly above the factory leaf springs, install in under an hour, and work seamlessly with existing suspension components. No air systems, no maintenance, no downtime — just dependable support that lasts for the life of the vehicle. Trusted by fleets, OEMs, and upfitters across North America, SuperSprings are the simplest way to build trucks that stay level, drive safer, and work harder every day.
Find the Right Kit for You

What Our Customers Are Saying

My 2017 Hyundai SF is a great SUV with the only complaint I’ve had is the rear suspension seems underside and appears to easily bottom out. I had the Coil SumoSprings installed and they made a noticeable improvement when pulling a 21′ boat.

Scott

2017 Hyundai Santa Fe

I just did a 900-mile ski trip from South Carolina to West Virginia in my 2017 Dodge Journey. With the car packed to the roof and skis on the rack, the rear Coil SumoSprings made a huge difference — cutting down sag, improving stability, and reducing body roll on curvy mountain roads. Install took some effort, but it was worth it. I’ve already ordered the front set to complete the setup.

Clarkson

2017 Dodge Journey

Bought a pair of the CSS-1195 for my 2018 Toyota Sienna XLS AWD. Very easy to install the SumoSpring for the front suspension. Noticeable improvements of the body roll reduction at the corners, which leads to better handlings and driving experience. Very satisfied with the purchase.

M. Huang

2018 Toyota Sienna XLS AWD

Built for Everyday Demands

Whether your trucks are hauling tools, towing equipment, or carrying full service bodies — we’ve got you covered.

Service & Utility Fleets

Keep vehicles level and predictable under heavy loads. Reduce sway and bounce to give drivers more confidence on every route.

Maintenance & Municipal Crews

Improve ride quality and stability for trucks that run loaded all day, reducing driver fatigue and suspension wear.

Construction & Trade Builds

Handle payloads, uneven ground, and constant stop-and-go driving without sagging or bottoming out.

Upfitters & OEM Partners

Simplify your build process with bolt-on, maintenance-free suspension solutions that integrate cleanly and perform for the life of the truck.

Build It Right. Keep It Working Every Day.

READY TO UPGRADE YOUR FLEET?

SuperSprings and SumoSprings deliver the stability, control, and confidence that hard-working trucks deserve — all in a maintenance-free, bolt-on design built to last.

Whether you’re upfitting service bodies, building fleet vehicles, or maintaining work trucks already in the field, our suspension solutions help you create builds that stay level, ride smoother, and perform better for the long haul. Because when your trucks drive better, your crews get more done — and your business runs stronger.

Find the Right Kit for You

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