Fox 2.0 Performance Series Rear IFP Shock w/ CD Adjuster | 2017-2025 Ford F-250/F-350 Super Duty 2WD/4WD | 0-1 in Lift | 985-26-174
$495.95
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Fox 2.0 Performance Series Rear IFP Shock w/ CD Adjuster | 2017-2025 Ford F-250/F-350 Super Duty 2WD/4WD | 0-1 in Lift | 985-26-174
$495.95
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Good to know before you buy
Fits
- 2017-2025 Ford F-250/F-350 Super Duty 2WD/4WD
Does not fit: Tremor, Factory lift packages
Why the FOX 2.0 Performance Series
Daily-driven and leveled or lifted trucks that want a real monotube with vehicle-specific valving at the entry point of the FOX line. This rear IFP shock with CD adjuster is valved and sized by FOX for the 2017-2025 Ford F-250/F-350 Super Duty 2WD/4WD running 0 to 1 in of lift. The aluminum body sheds heat far faster than a steel twin-tube, so the ride stays consistent on long washboard and towing grades. FOX shocks are fully rebuildable and re-valvable, so this is the last IFP shock the truck needs.
At a glance
| Position | Rear |
|---|---|
| Quantity | One shock |
| Body diameter | 2.0 in |
| Shaft | 5/8 in hard chrome plated |
| Architecture | Monotube, internal floating piston (IFP) |
| Adjustment | CD compression damping adjuster |
| Lift range | For 0 to 1 in lift |
| FOX size designation | 12.1 in |
| Warranty | Limited lifetime warranty (FOX 2.0 and 2.5 Performance Series purchased after 3/30/2025) |
What is in the box
- One shock with FOX mounting hardware where the application requires it
- FOX installation instructions (also at tech.ridefox.com)
Manufacturer part number 985-26-174. Designed and built by FOX Factory.
Questions
Is this a lift?
No. It is a shock built for the lift range shown. Match the lift range to your leveling or lift kit; a shock that is too short limits droop and a shock that is too long can bottom internally.
Do I need to buy two?
This part number is one shock. Order two for a complete axle, or check our matching front or rear shock for the same lift range.
Is it rebuildable?
Yes. Every FOX truck shock can be rebuilt, re-charged and re-valved by FOX Factory or an authorized service center, so it does not become a throwaway part when the seals wear.
What does the CD adjuster do?
The compression damping knob on the reservoir firms or softens the shock through its whole speed range, handy when you alternate between an empty bed and a loaded trailer.
IFP or remote reservoir?
The IFP version is the lighter, simpler and lower-cost shock and carries the FOX lifetime warranty. The remote reservoir version holds more oil and nitrogen for repeated high-speed hits and carries a one-year warranty.
What is the warranty?
Limited lifetime warranty (FOX 2.0 and 2.5 Performance Series purchased after 3/30/2025). Warranty is to the original retail purchaser through the place of purchase; keep your Hannah Suspension order confirmation.
FOX truck shock lines
| Line | Body | Architecture | Adjuster | Warranty |
|---|---|---|---|---|
| 2.0 Performance Series | 2.0 in | IFP or remote reservoir | None (CD on select R/R) | Lifetime (IFP) / 1 yr (R/R) |
| 2.5 Performance Series | 2.5 in | IFP, HTO on select | None | Lifetime |
| 2.5 Performance Elite | 2.5 in | Reservoir | DSC dual speed | 1 year |
| 2.5 Factory Series | 2.5 in | Reservoir | DSC where fitted | 1 year |
| 3.0 Factory Race / Series | 3.0 in | Reservoir, internal bypass | None | 1 year |
| 3.2 Factory Race Live Valve | 3.2 in | Reservoir, Live Valve | Electronic | 1 year |
About FOX
FOX Factory has built race-winning dampers since 1974 and supplies factory suspension to Ford, Ram, GM and Toyota off-road trims. Every FOX truck shock is aluminum-bodied, fully serviceable and tuned for the specific vehicle. Limited lifetime warranty (FOX 2.0 and 2.5 Performance Series purchased after 3/30/2025). Hannah Suspension ships genuine FOX parts with full factory warranty; keep your order confirmation, FOX warranties run to the original purchaser.