FOX 883-26-013 2.5 Factory Race DSC Reservoir Shocks 4-6in Lift Ford F250/F350

Vehicle Fitment

• 2005-2016 Ford F-250 Super Duty (4WD, 4-6" Lift)
• 2005-2016 Ford F-350 Super Duty - Excluding Chassis Cab (4WD, 4-6" Lift)
• 2008-2016 Ford F-350 Super Duty Cab & Chassis (4WD, 4-6" Lift)
• 2008-2016 Ford F-450 Super Duty - Not Chassis Cab (4WD, 4-6" Lift)
• 2008-2016 Ford F-450 Super Duty Cab & Chassis (4WD, 4-6" Lift)
• 2008-2016 Ford F-550 Super Duty (4WD, 4-6" Lift)

Fitment Notes

• Front position only - sold as a pair (2 shocks)
• Designed for vehicles with an existing 4-6" lift; additional lift hardware may be required to achieve lift
• 4WD drivetrain only
• Does not fit standard 2WD Ford Super Duty models
• Reservoir hose may require adjustment on 2017+ model year vehicles to clear tires properly if used in cross-fitment scenarios

Features

• FOX 2.5 Factory Race Series smooth body reservoir design derived directly from off-road race shock technology for truck-specific performance
• Dual Speed Compression (DSC) adjuster enables independent low-speed and high-speed compression tuning without tools for terrain and load adaptability
• External anodized aluminum reservoir increases oil and nitrogen capacity for fade-free operation under sustained off-road use
• Zinc-plated seamless alloy shock body resists corrosion and wear in demanding conditions
• Black-anodized CNC-machined 6061-T6 billet aluminum components for precision fit and long-term durability
• Application-specific valving tuned for the Ford Super Duty's weight, suspension geometry, and lifted ride height
• 100% serviceable and re-tunable for extended lifespan and custom valving options
• Bolt-on installation using factory mounting hardware - no drilling required on 2005-2016 applications

Specifications

• Part Number: 883-26-013
• Series: FOX 2.5 Factory Race Series
• Body Diameter: 2.5 inches
• Body Material: Zinc-plated seamless alloy steel
• Extended Length: 26.37 inches
• Collapsed Length: 16.40 inches
• Travel: 9.97 inches
• Lift Range: 4-6 inches (Front)
• Top Mount: SM1 (Stem)
• Bottom Mount: ES7 (Eyelet)
• Reservoir Type: External Remote
• Adjuster: DSC (Dual Speed Compression)
• Finish: Zinc / Black-Anodized Aluminum Components
• Position: Front
• Drivetrain: 4WD only
• Quantity: 2 shocks per set

Included Components

• 2x FOX 2.5 Factory Race Series Front Reservoir Shocks with DSC Adjuster
• 1x Hardware kit (washers, bushings, and nuts)

Product Description

The FOX 883-26-013 is a front shock pair purpose-built for 2005-2016 Ford F-250, F-350, F-450, and F-550 Super Duty trucks running 4-6 inches of front lift. Drawing directly from FOX's off-road race shock program, the 2.5 Factory Race Series delivers application-specific valving matched to the Super Duty's substantial curb weight and lifted geometry. The external anodized reservoir increases fluid and nitrogen capacity compared to standard shocks, keeping operating temperatures stable during extended hard use - whether hauling, towing, or running rough terrain at speed.

The DSC (Dual Speed Compression) adjuster is the standout feature, allowing drivers to fine-tune both low-speed and high-speed compression damping via external adjuster knobs without any tools. Low-speed adjustment dials in on-road feel, braking dive, and g-out control, while high-speed adjustment manages big hits and rough terrain impacts. The result is a shock that can be tuned for daily highway driving or reconfigured for weekend off-road use in minutes. This is a bolt-on replacement for 4WD Super Duty applications with existing 4-6" lift kits, making it a direct upgrade for trucks already running aftermarket suspension.