Description
The FOX® 985-24-133 is a 2.0 Performance Series smooth body remote reservoir front shock with 10.1 inches of travel, built for 2005–2016 Ford F-250, F-350, F-450, and F-550 Super Duty trucks running 4″–5″ of front lift.
IMPORTANT: This shock is application-specific to the front position and the 4″–5″ lift range. FOX® also lists part number 985-24-121 for the same 2005–2016 platform at a shorter 2″–3.5″ front lift range — confirm your lift height before ordering so you get the correct travel and valving for your setup. This unit ships with the universal mounting bracket included; no additional hardware is required for installation.
This is a bolt-on aluminum-bodied shock built around FOX®’s Performance Series platform, designed to deliver race-proven damping performance in a hassle-free direct-fit package. The 2.0″ impact-extruded 6061-T6 aluminum shock body is clear-anodized for corrosion resistance and dissipates heat faster than a comparable steel-body shock.
An external reservoir increases total oil and nitrogen capacity over a standard monotube design, improving damping consistency during extended off-road runs or heavy-load towing where the shock is working hardest. The reservoir mounting clamp and other components are CNC-machined from black-anodized 6061-T6 billet aluminum.
A race-developed high-flow damping piston is matched with application-specific valving tuned for the Super Duty platform, delivering predictable ride quality across rough and uneven terrain. The shaft is 5/8″ hard chrome-plated, heat-treated alloy steel, and sealing is handled by a redundant three-stage system — main seal, wiper seal, and scraper seal — for long service life. FOX® backs this shock with a Limited Lifetime Warranty.
- Front application for 2005–2016 Ford F-250, F-350, F-450, F-550 Super Duty, 4″–5″ lift
- 2.0″ impact-extruded 6061-T6 aluminum body, clear-anodized for corrosion resistance
- External reservoir for increased oil and nitrogen capacity
- Black-anodized, CNC-machined 6061-T6 billet aluminum components
- 5/8″ hard chrome-plated, heat-treated alloy steel shaft
- Race-developed high-flow piston with application-specific valving
- Redundant three-stage seal system: main seal, wiper seal, scraper seal
- Includes universal mounting bracket — no additional hardware required
- FOX® Limited Lifetime Warranty
- Sold individually
| Part Number | 985-24-133 |
| Series | Performance |
| Position | Front |
| Travel | 10.12 in |
| Body | 2.0″ impact-extruded 6061-T6 aluminum, clear-anodized |
| Components | Black-anodized, CNC-machined 6061-T6 billet aluminum |
| Shaft | 5/8″ hard chrome-plated, heat-treated alloy steel |
| Piston | Race-developed high-flow piston design |
| Valving | Application-specific |
| Seals | Redundant sealing pack: main seal, wiper seal, scraper seal |
| Extended Length | 25.87 in |
| Compressed Length | 15.75 in |
| Top Mount | Stem top |
| Bottom Mount | Eyelet |
| What’s Included | Universal mounting bracket |
| Warranty | FOX® Limited Lifetime Warranty |
| Sold As | Individually |
Covers the front position on 2005–2016 Ford F-250, F-350, F-450, and F-550 Super Duty trucks running 4″–5″ of lift, per FOX®’s published application data.
This is not the correct shock for a 2″–3.5″ lift — that application uses FOX® part number 985-24-121 instead.