

Fox 2017-2026 Ford F-250/350 Super Duty 2.5 Performance Series Reservoir Front Shock 4-6in Lift
2017–2026 Ford F-250/F-350 Super Duty Front 2.5 Performance Elite Reservoir Shocks (4–6" Lift)
Upgrade your suspension with Fox Performance Elite Series 2.5 Reservoir shocks, engineered to deliver enhanced ride quality, superior control, and consistent performance in demanding conditions. Built using race-proven technology developed in extreme off-road environments, these shocks are designed to handle everything from daily driving to aggressive off-road use. The external reservoir increases oil and nitrogen capacity for improved cooling and fade resistance, while the Dual Speed Compression (DSC) adjuster allows precise tuning for both comfort and performance. Designed as a direct bolt-on upgrade, these shocks provide exceptional damping, stability, and control for lifted Super Duty trucks.
Key Features
- 2.5" impact-extruded and CNC-machined 6061-T6 aluminum body with Type III hard anodizing for maximum durability and corrosion resistance
- 7/8" hard chrome-plated, heat-treated alloy steel shaft for strength and long service life
- External remote reservoir increases oil and nitrogen capacity for improved cooling and fade resistance
- Dual Speed Compression (DSC) adjuster allows precise tuning of low- and high-speed compression damping
- Race-developed high-flow piston improves damping performance and bottom-out resistance
- Application-specific valving tuned for optimal ride quality and control
- Redundant sealing system with main seal, wiper seal, and scraper seal for extended reliability
- PTFE-lined, heat-treated alloy steel spherical bearings for smooth articulation
- Smooth bore, honed seamless alloy reservoir enhances performance consistency
- Aluminum body and reservoir design efficiently dissipate heat under demanding conditions
- Engineered to maximize suspension travel in both compression (jounce) and extension (droop)
- Remote reservoir mounting designed to clear larger, aggressive tires at full steering lock
- Delivers improved comfort, stability, and control across a wide range of terrain
What’s Included
- (2) Front 2.5 Performance Elite Reservoir Shocks
Installation
- Estimated Install Time: 2–3 hours
- Difficulty Level: Moderate
- Installation Type: Direct bolt-on
- Hardware: Includes necessary bushings and sleeves (factory hardware reused where applicable)
Specifications
- Series: Performance Elite
- Shock Type: Monotube with Remote Reservoir
- Body Diameter: 2.5"
- Travel: 9.98"
- Extended Length: 27.29"
- Compressed Length: 17.31"
- Shaft: 7/8" hard chrome-plated steel
- Body Material: 6061-T6 aluminum, hard anodized
- Reservoir: External smooth body reservoir with DSC adjuster
- Mounting: Stem top, eyelet bottom
Fitment
Ford Super Duty – Front (4–6" Lift Applications)
4WD Models:
- 2017–2026 Ford F-250 Super Duty
- 2017–2026 Ford F-350 Super Duty
2WD & 4WD Models (Select Trims):
- 2025 Ford F-250 Super Duty (King Ranch, Lariat, Platinum, XLT)
- 2023–2026 Ford F-350 Super Duty (King Ranch, Platinum)
- 2018–2024 Ford F-350 Super Duty (Limited)
Notes
- Designed for 4"–6" lifted applications
- Sold as a pair
- Always verify suspension setup and lift height before ordering

