EZ-550 Heavy Duty Helper Spring Kit For Ford GMC Pickup Trucks SUV & Trailers
EZ-550 Heavy Duty Helper Spring Kit For Ford GMC Pickup Trucks SUV & Trailers
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EZ-550 Heavy Duty Helper Spring Kit for Ford and GMC Pickup Trucks, SUVs, and Trailers
This EZ-550 heavy duty helper spring kit reinforces rear leaf springs to reduce sag and improve load control on Ford and GMC pickups, SUVs, and trailers.
Overview
The EZ-550 heavy duty helper spring kit is a bolt-on suspension upgrade that adds progressive spring rate to factory leaf packs, targeting overloads and heavy cargo. It stabilizes ride height when towing campers, boats, or equipment, and it keeps headlights aimed correctly and steering responsive for owners who regularly haul heavy loads.
Built For Performance
- High-strength steel leaves resist fatigue and sag under constant load
- Progressive spring rate automatically stiffens as weight increases
- Corrosion-resistant powder-coat finish stands up to road salt and moisture
- Adjustable tension lets you fine-tune load support to match your setup
- Direct bolt-on design requires no drilling or welding on most applications
- Includes mounting hardware and detailed instructions for straightforward installation
Fits These Machines
- for Ford F-150
- for Ford F-250
- for Ford Expedition
- for GMC Sierra 1500
- for GMC Sierra 2500
- for GMC Yukon
- for utility and cargo trailers
On-The-Job Use
- Hauling firewood, gravel, or building supplies in a pickup bed
- Towing travel trailers, enclosed car haulers, or boat trailers
- Carrying slide-in truck campers and maintaining level suspension
- Running hydraulic dump trailers without dangerous rear squat
- Riding loaded on uneven job-site or ranch roads with improved stability
Specs At A Glance
| Part Number(s) | EZ-550 |
Good To Know
Q: Will this helper spring kit work with my existing lift or leveling kit? A: In most cases yes, but you should measure your current spring pack thickness and check the included U-bolt length to ensure proper clamping; small adjustments to the mounting brackets may be needed.
Q: Do I need to install the EZ-550 kit on both sides? A: Absolutely, helper springs should always be installed in pairs to keep the suspension balanced and prevent uneven handling or tire wear.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.
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