COIL SPRINGS
Pro One Design Linear-Rate Coil Springs Are Engineered With A Custom-Wound Spring Rate To Deliver A Soft, Smooth, And Controlled Ride Throughout The Entire Suspension Travel. The Linear-Rate Design Smoothly Absorbs Minor Road Imperfections And Small Bumps While Providing Predictable, Consistent Compression As The Suspension Moves Deeper Into Its Travel. The Result Is A Softer Ride With Improved Comfort, Control, And Suspension Performance Both On And Off Road.
2.5" of Lift on 17-19 F-250 / F-350 / F-450 4WD
3.5" of Lift on 20-26 F-250 / F-350 / F-450 4WD
Pro One Design Springs—And Comparable Options From Other Manufacturers—Are Commonly Labeled As 2.5" Or 3.5" Depending On Ford Super Duty Model Year. This Difference Is Based On Factory Ride Height, Not A Change In The Spring Design.
Starting In 2020, Ford Lowered The Factory Ride Height On Super Duty Trucks By Approximately 1" Compared To 2005–2019 Models. Because Of This, The Same “2.5 Inch” Leveling Coil Will Produce Roughly 2.5" Of Lift On A 2005–2019 Truck, But About 3.5" Of Lift On A 2020+ Truck.
The Spring Itself Has Not Changed—The Variation Comes Entirely From The Newer Trucks Starting At A Lower Factory Stance.
These Springs Are Also Engineered With A Soft, Linear Spring Rate To Deliver A Smoother Ride, Improved Compliance, And Consistent, Predictable Handling Both On-Road And Off-Road.
The Exception Is The 2020+ Super Duty Tremor. These Trucks Come With An Approximate 2" Factory Lift, Making Them About 1" Taller Than A Standard 2005–2019 Super Duty. On Tremor Models, Our 2.5"/3.5" Spring Provides Approximately 1.5" Of Additional Front Lift.
| Make | Model | Year |
|---|---|---|
| Ford | F250 / F350 Super Duty | 2026 |
| Ford | F250 / F350 Super Duty | 2025 |
| Ford | F250 / F350 Super Duty | 2024 |
| Ford | F250 / F350 Super Duty | 2023 |
| Ford | F250 / F350 Super Duty | 2022 |
| Ford | F250 / F350 Super Duty | 2021 |
| Ford | F250 / F350 Super Duty | 2020 |
| Ford | F250 / F350 Super Duty | 2019 |
| Ford | F250 / F350 Super Duty | 2018 |
| Ford | F250 / F350 Super Duty | 2017 |
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| Part Number | F406-231 |
|---|---|
| Handling Time | 1 business day(s) |
Before You Install
Suspension modification notice. Installing this product modifies the suspension of your vehicle. A modified vehicle may handle differently than it did from the factory. Reduced speeds and different driving technique may be required, particularly in sharp turns and abrupt maneuvers. Always wear seat belts.
Alignment. Your vehicle will likely require an alignment after installation, at additional cost.
Headlamp aim. Check and adjust headlamp aim after installation.
Driver assistance systems. If your truck has camera- or radar-based safety systems, they may need to be re-aimed or recalibrated by a dealer after a ride-height change.
Read the instructions all the way through before starting. Installation by a qualified technician is recommended. Some modifications may not be legal in every state — check your local laws.
Questions Before You Order?
Talk to someone who actually wrenches on these trucks.
