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Service Trucks

Most service trucks aren’t built for the added weight of cranes, tools, and equipment. Once upfitted, stock suspensions sag, sway, and lose control. SuperSprings International solves this with heavy-duty, maintenance-free upgrades that keep service trucks level, stable, and reliable — from single builds to full fleets.

Stronger Support. Simpler Solutions.
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Everything your service fleet needs for better control, longer life, and fewer
headaches — without the complications.

control car

Less Sway, More Control

Reduces body roll from heavy tools, cranes, and service bodies. Keeps trucks steady on uneven ground and safe through turns and stops.

Stays Level Under Load

Maintains ride height and handling with any setup — from drawers and reels to welders and compressors.

Zero Maintenance

No compressors or air lines — just bolt-on upgrades that deliver years of consistent, downtime-free performance.

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Made in the USA

Engineered and built in the USA, backed by a lifetime guarantee, and trusted by fleets and upfitters nationwide.

Built to Carry the Weight of the Workday

DEPENDABLE SUSPENSION FOR SERVICE TRUCKS THAT NEVER TAKE A BREAK

Every service truck carries its own version of heavy duty — cranes, compressors, welders, reels, and tools that make the job happen. But those same loads push factory suspension beyond its limits, causing sag, sway, and wear that cost time and money.

SuperSprings helper springs deliver the extra muscle your trucks need — automatically engaging as weight increases to keep your chassis level, controlled, and safe. No adjustments. No airlines. No maintenance. Just consistent, self-leveling support that’s always ready for the next job.

Proudly engineered and built in the USA, SuperSprings help fleets and upfitters keep service vehicles working hard, riding level, and performing like they should — day after day, job after job.

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Product Spotlight – SuperSprings

AUTOMATIC LOAD SUPPORT FOR THE HARDEST-WORKING TRUCKS

PERFECT FOR SERVICE BODIES, CRANE TRUCKS, AND MOBILE WORKSHOPS
SuperSprings helper springs are the simplest, most effective way to add real load support to service trucks. They bolt directly above your existing leaf pack, automatically adjusting to changing weight — keeping your truck level and stable whether you’re carrying a full load of tools or running light between job sites.

No air systems. No adjustments. No downtime. Just pure mechanical support that engages only when needed, improving control, reducing sway, and extending the life of your suspension and tires.

Built in the USA and trusted by fleets, municipalities, and upfitters across North America, SuperSprings turn every work truck into a stronger, safer, more reliable performer — season after season.
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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

Engineered for Real-World Work

Service trucks aren’t weekend haulers — they’re mobile workshops that carry the tools, gear, and equipment that keep industries running. Our suspension solutions are built to perform where reliability and uptime matter most.

Crane & Mechanics Trucks

Maintain stability during lifting operations and while carrying heavy rear-mounted cranes or compressors.

Mobile Maintenance & Repair Units

Deliver consistent handling and predictable braking with fully equipped service bodies or custom upfits.

Utility & Electrical Service Bodies

Stay level and reduce sway under tool drawers, generators, and side-mounted equipment that shift your truck’s center of gravity.

Fleet & Contractor Builds

Standardize quality across every chassis. Bolt-on suspension upgrades simplify installation and improve long-term performance for fleets of any size.

Build It Strong. Keep It Working.

READY TO UPGRADE YOUR SERVICE FLEET?

SuperSprings suspension systems deliver the strength, control, and consistency service trucks need to handle every job with confidence. Designed for easy bolt-on installation and a lifetime of maintenance-free performance, they’re the simplest way to improve load handling, safety, and driver comfort across your entire fleet.

Whether you’re building new service bodies, upfitting contractor trucks, or managing an established fleet, our suspension solutions keep your vehicles level, reliable, and ready to work — every day, on every site.

Find the Right Kit for You

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