FREE DOMESTIC SHIPPING UNDER 50LBS

Mechanics Trucks

Mechanics trucks haul cranes, compressors, welders, and tools — demanding more than factory suspensions can handle. Sag, sway, and bounce come fast under constant weight. SuperSprings International fixes that with bolt-on, maintenance-free solutions that keep trucks level, stable, and in control. From single builds to full fleets, we help you stay on the job, not in the shop.

Heavy Loads. Tight Spaces. Zero Compromise.
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Everything You Need for a More Stable, Safer Service Truck — Without
the Hassle.

control car

Less Sway, More Control

Keeps crane and tool-loaded trucks steady on uneven sites. Reduces sway and body roll for better handling and operator confidence.

Stays Level Under Load

Adapts automatically to changing weight, keeping trucks level and controlled mile after mile.

Zero Maintenance

No air lines or adjustments — just bolt-on reliability that keeps trucks working, not waiting for service.

Detailed image of the American flag showcasing the stars and stripes symbolizing USA's patriotism and pride.

Made in the USA

Built in the USA and backed by a lifetime warranty — proven reliable when your business depends on it.

Strength When You’re Loaded. Stability When You’re Not.

SMARTER SUSPENSION FOR EVERY JOBSITE

SuperSprings helper springs are designed for the real-world demands of mechanics trucks — heavy loads, rough terrain, and constant movement. Their self-adjusting design delivers extra support only when it’s needed, absorbing impact and reducing rear-end sag without stiffening the ride when unloaded.

Whether you’re carrying a crane, compressor, or a full set of tools, SuperSprings automatically balance your load, minimize sway, and keep your chassis level. No air lines. No manual adjustments. No maintenance.

Just reliable, progressive support that keeps your service truck stable, your equipment safe, and your team working efficiently day after day.

Find the Right Kit for You

Product Spotlight – SuperCoils

BIG SUPPORT, FRONT TO BACK

THE HEAVY-DUTY SPRING UPGRADE BUILT FOR DEMANDING WORK TRUCKS
SuperCoils are the ultimate upgrade for trucks that carry more than they were built for. Designed as a direct replacement for factory coil springs, they deliver increased load capacity, improved handling, and a level, controlled ride — even when you’re loaded with tools, cranes, or heavy service bodies.

By evenly distributing weight across the front suspension, SuperCoils reduce nose dive during braking, sharpen steering response, and help maintain consistent ride height under heavy equipment loads.

No air systems, no adjustments, no downtime — just pure, heavy-duty spring support engineered to keep mechanics trucks working safely and efficiently. Proudly made in the USA and backed by a lifetime warranty, SuperCoils help every upfitter and fleet manager build smarter, stronger, and longer-lasting trucks.
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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

Suspension Solutions Built for the Demands of Mechanics Trucks

Heavy Equipment, No Problem

From cranes and welders to compressors and tool bodies, SuperSprings and SuperCoils handle the weight without losing control. Stay level, steady, and predictable no matter what the job calls for.

All-Day Comfort

Operators spend hours behind the wheel. Our suspension upgrades minimize vibration and body roll, reducing fatigue and improving control during long shifts.

On-Site Stability

Uneven terrain and job-site ruts are part of the trade — our progressive springs absorb harsh impacts, reducing bounce and sway while protecting your tools and equipment.

Fleet-Proven Durability

Trusted by upfitters and fleet managers alike, every SuperSprings International product is built to perform under real-world conditions — keeping trucks working longer, safer, and smoother.

Find Your Fit. Build Stronger, Drive Smarter.

READY TO UPGRADE YOUR FLEET?

SuperCoils and SuperSprings deliver the control, balance, and reliability that mechanics trucks need to perform — with zero maintenance and proven long-term durability. Whether you’re upfitting a single service truck or managing an entire fleet, our bolt-on suspension solutions keep every rig level, stable, and road-ready from the first install to the final mile.

Find the Right Kit for You

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