FOX 2.0 Adventure Series Steel Body IFP Front Shock | 4" Lift | 2005–2016 Ford F-250 / F-350 Super Duty 4WD | Set of 2

Is This for You?

• You're running a 2005–2016 Ford F-250 or F-350 Super Duty 4WD with a 4" front lift and your factory shocks are worn, undersized for the lift height, or no longer controlling chassis movement under load — the FOX 2.0 Adventure Series IFP front shock is valved specifically for the F-250/F-350 chassis weight and dynamics at 4" of front lift.
• You tow, haul, or carry heavy accessories and need a shock that maintains damping consistency under repeated load cycles — the Internal Floating Piston (IFP) design separates the oil charge from the nitrogen charge, preventing aeration and the fade that occurs when oil and gas mix under sustained use.
• You want a direct bolt-on upgrade without custom fabrication — the 25.15" extended and 15.55" collapsed lengths are engineered for correct fitment and full suspension travel on 2005–2016 F-250/F-350 4WD platforms at 4" front lift.

The Result

• IFP design prevents oil aeration — consistent damping force across repeated impacts, sustained towing loads, and extended off-road use without the fade that degrades conventional twin-tube shocks under heat and pressure.
• Steel shock body with gas charge — built for the load demands of F-250/F-350 platforms running heavy payloads, towing, and off-road terrain where shock body integrity and heat dissipation are critical.
• Valved for 4" front lift on F-250/F-350 — correct travel range (25.15" extended / 15.55" collapsed) maintains proper suspension geometry and prevents over-extension at full droop.

The Internal Floating Piston is a dividing piston inside the shock body that separates the hydraulic oil from the pressurized nitrogen charge. In a conventional twin-tube shock, oil and gas can mix under sustained use — particularly during repeated impacts at speed or extended towing — causing the oil to aerate and the shock to lose damping force. The IFP eliminates this by maintaining a physical barrier between the two fluids at all times. The nitrogen charge remains at consistent pressure regardless of oil temperature or shock cycling rate, which is why IFP shocks maintain more consistent damping force across a wider range of operating conditions than twin-tube designs. The steel shock body provides the structural rigidity and heat dissipation required for F-250/F-350 gross vehicle weights — these trucks generate significantly higher shock loads than half-ton platforms, particularly when loaded or towing. The Adventure Series valving is tuned for the specific spring rates, unsprung weight, and chassis dynamics of the F-250/F-350 at 4" front lift — not a generic heavy-duty tune adapted to fit. Alignment is recommended after installation. Verify lift height and supporting components (UCAs, alignment cams, track bar) before installation. Sold as a set of 2 shocks.

Audit Table

Verified Fitment

✔ 2005–2016 Ford F-250 Super Duty — 4WD — 4" Front Lift
✔ 2005–2016 Ford F-350 Super Duty — 4WD — 4" Front Lift

✘ Does NOT fit 2WD F-250/F-350 — 4WD-specific shock geometry
✘ Does NOT fit 2017+ F-250/F-350 Super Duty — new body generation uses different shock mounting
✘ Does NOT fit stock-height or non-4" lift applications — extended/collapsed lengths are calibrated for 4" front lift; incorrect travel range on stock or different lift heights
✘ Does NOT fit F-150 — F-250/F-350 Super Duty application only

Installation Notes

• Direct bolt-on installation. Professional installation recommended.
• Alignment required after installation — front shock replacement on lifted Super Duty platforms affects caster and alignment angles.
• Verify front lift height is 4" before ordering — extended and collapsed lengths are specific to 4" lift geometry. Do not install on stock-height or different lift-height applications.
• Verify supporting components (UCAs, alignment cams, track bar drop bracket) are compatible with 4" lift before installation.
• Sold as a set of 2 — both front shocks included.

Engineering Question: Confirm your F-250 or F-350 is 4WD and running a 4" front lift. What lift kit brand and model are you running, and have you verified UCA and alignment cam compatibility? This shock is valved and sized for 4" front lift on 2005–2016 Super Duty 4WD — incorrect lift height will result in improper travel range and handling characteristics.