Description
Part number 883-26-099, the FOX® 2.5 Performance Elite Series Front Shock Pair, is a set of two 2.5-inch reservoir smooth body shocks designed for the front axle of 2017–2026 Ford F-250 and F-350 Super Duty trucks running 4–6 inches of lift.
IMPORTANT: This kit covers the front position only and is designed for 4″–6″ of front lift height. Verify your current or planned lift height matches this specification before ordering. These shocks are sold as a pair (2 shocks). Photos are general product photos; correct configuration will be sold for your specific vehicle.
FOX® Performance Elite Series 2.5 Reservoir shocks are engineered to deliver enhanced ride quality and precise control on and off the pavement. Their design lineage traces directly to FOX®’s off-road race shocks, translating proven competition technology into a bolt-on application for heavy-duty trucks. The external reservoir increases oil and nitrogen capacity for more consistent damping performance under sustained off-road use, while also providing a distinct race-ready appearance.
At the core of the Performance Elite Series is a race-developed, high-flow piston paired with application-specific valving tuned for the F-250 and F-350 Super Duty platform. The 2.5-inch smooth bore, honed seamless alloy reservoir is equipped with a Dual Speed Compression (DSC) adjuster, allowing the driver to independently tune low-speed and high-speed compression damping to suit load conditions, terrain, and personal preference. Remote reservoirs are positioned to clear aggressive tires at full steering lock.
The shock body is constructed from 2.5-inch impact-extruded and CNC-machined 6061-T6 aluminum with a Type III hard anodized finish for long-term corrosion resistance. The 7/8-inch hard chrome-plated, heat-treated alloy steel shaft resists wear and bending under demanding conditions. PTFE-lined, heat-treated alloy steel spherical bearings are used at the mounting points, and a redundant sealing pack — combining a main seal, wiper seal, and scraper seal — ensures consistent fluid retention over the life of the shock. FOX® backs the 2.5 Performance Elite Series purchased after 3/30/2025 with a limited lifetime warranty against defects in materials and workmanship under normal use on the vehicle application for which the product was designed.
- Fits 2017–2026 Ford F-250 Super Duty and F-350 Super Duty, Front position, 4″–6″ front lift height
- 2.5-inch impact-extruded and CNC-machined 6061-T6 Type III hard anodized aluminum shock body
- External 2.5-inch smooth bore honed seamless alloy reservoir with Dual Speed Compression (DSC) adjuster for independent low- and high-speed compression tuning
- Race-developed high-flow piston with application-specific valving
- 7/8-inch hard chrome-plated, heat-treated alloy steel shaft
- PTFE-lined, heat-treated alloy steel spherical bearings at mount points
- Redundant sealing pack: main seal, wiper seal, and scraper seal
- Remote reservoirs positioned to clear aggressive tires at full steering lock
- Unlocks full travel in both jounce and droop positions
- 9.98 inches of travel; extended length 27.29 inches, compressed length 17.31 inches
- Top mount: Stem Top; Bottom mount: Eyelet
- Limited lifetime warranty (for units purchased after 3/30/2025) against defects in materials and workmanship
- Sold as a pair (2 shocks)
| Part Number | 883-26-099 |
| Series | Performance Elite |
| Body Diameter | 2.5 inches |
| Body Material | Impact-extruded and CNC-machined 6061-T6 aluminum |
| Body Finish | Type III hard anodized |
| Shaft | 7/8″ hard chrome-plated, heat-treated alloy steel |
| Piston | Race-developed high-flow piston |
| Valving | Application-specific |
| Reservoir | 2.5″ smooth bore honed seamless alloy with DSC adjuster |
| Seals | Redundant sealing pack: main seal, wiper seal, scraper seal |
| Bearings | PTFE-lined, heat-treated alloy steel spherical |
| Components | Black-anodized, CNC-machined 6061-T6 billet aluminum |
| Travel | 9.98 inches |
| Extended Length | 27.29 inches |
| Compressed Length | 17.31 inches |
| Top Mount | Stem Top |
| Bottom Mount | Eyelet |
| Front Lift Height | 4″–6″ |
| Position | Front |
| Quantity | 2 shocks (sold as a pair) |
| Warranty | Limited lifetime (purchased after 3/30/2025); defects in materials and workmanship |
This pair fits 2017–2026 Ford F-250 Super Duty and F-350 Super Duty trucks equipped with 4–6 inches of front lift. Fitment covers 4WD configurations across model years; see the vehicle fitment data for full year-by-year and trim-level detail. This listing is for the front shock pair (883-26-099) only — if you are sourcing rear shocks for the Super Duty platform, confirm the correct rear-position part number separately.








