Zone Offroad F91F Lift Kit — 4" Front | Fox Adventure Shocks | Clears 35" Tires | 2021–2026 Ford F-150 4WD | Non-CCD · Non-Tremor · Non-Raptor

Four inches of lift. Thirty-five-inch tire clearance. Fox Adventure shocks. Four exclusions to confirm first.

Before ordering — confirm your F-150 is 4WD, is not a Raptor or Tremor, does not have factory CCD, and is 2021 or newer. Miss any of those and you're in the wrong kit.

The Zone Offroad F91F delivers 4 inches of front lift on the 2021–2026 F-150 4WD platform with corrected caster, camber, and scrub radius geometry via heavy-duty crossmembers and steering knuckles. Differential drop brackets correct CV axle angles at lifted height. Fox Adventure Series shocks valved for the lifted F-150 4WD geometry are included front and rear. Clears 35-inch tires per manufacturer specification — verify clearance with your specific wheel offset before ordering. Want Nitro shocks at a lower price? Order F91N.

F91F vs F91N — the only difference is the shock:

Same crossmembers, knuckles, strut spacers, differential drop brackets, and rear lift components. Fox Adventure Series shocks deliver improved damping consistency over the Nitro alternative — particularly on rough terrain and high-speed road inputs. If the geometry correction is the priority and budget matters, F91N. If Fox damping performance is worth the step up, F91F.

F91F vs F90F — 4-inch vs 6-inch:

Four inches of front lift keeps CV axle angles within a more comfortable operating range than 6 inches — reduced geometry stress for daily-driven builds. For maximum tire clearance and aggressive builds, F90F. For a daily driver running 35s where long-term CV health and on-road compliance matter, F91F.

Kit contents:

• Heavy-duty front crossmembers
• Steering knuckles
• Strut spacers
• Differential drop brackets
• Rear lift components
• Fox Adventure Series shocks — front and rear
• All required hardware

✅ This kit fits — 2021–2026 F-150 4WD (non-CCD, non-Tremor, non-Raptor)

❌ This kit does NOT fit — read before ordering

⚠️ CCD owners — critical: Installing a standard lift kit on a CCD-equipped F-150 destroys the factory electronic adaptive damping system and may trigger suspension fault codes. Check your window sticker for "Continuously Controlled Damping" or option code 60S on the door jamb before ordering. If CCD is confirmed, order F103.

⚠️ Tremor owners: The Tremor's wider track and factory Fox 2.0 suspension require Tremor-specific geometry. Order F107F or F107N.

Before You Buy — Questions We Get Asked

Q: What's the difference between F91F and F91N?

One thing only — the shock package. Both kits use the same heavy-duty crossmembers, steering knuckles, strut spacers, differential drop brackets, and rear lift components on the same 2021–2026 F-150 4WD platform at 4 inches of front lift. F91F includes Fox Adventure Series shocks with improved damping consistency. F91N includes Nitro gas shocks at the entry price point. Same geometry. Same 35-inch tire clearance. Choose based on shock quality preference and budget.

Q: Why choose 4 inches over 6 inches?

At 4 inches of front lift, CV axle angles stay within a more comfortable operating range than at 6 inches — reduced wear on CV joints and steering components over time, and more compliant on-road geometry for daily-driven builds. Both F91F and F90F clear 35-inch tires per manufacturer specification. If the truck is primarily a daily driver where long-term CV health and on-road compliance matter, F91F. For maximum lift height and aggressive builds where the extra 2 inches of clearance justifies the geometry demand, F90F.

Q: Does this clear 35-inch tires?

Yes — Zone Offroad confirms 35-inch tire clearance at 4 inches of front lift. Verify clearance with your specific wheel offset and tire combination before ordering — wheel offset affects clearance independently of lift height.

Q: How does this ship?

This kit ships via LTL freight carrier at 207 lbs. Residential delivery is included — the freight carrier will contact you to schedule a delivery window. Professional installation is required. Budget for a full 4-wheel alignment at the time of install and a re-torque appointment at 500 miles.

The Obsidian Take

The F91F is for the 2021–2026 F-150 4WD owner who wants 4 inches of front lift with Fox Adventure Series shocks — and who has confirmed their truck is not a Raptor, not a Tremor, and not CCD-equipped. Four inches clears 35-inch tires per manufacturer spec while keeping CV axle angles in a more comfortable operating range than a 6-inch system — the right call for a daily-driven build where long-term driveline health matters as much as stance. Fox Adventure Series shocks valved for the lifted F-150 4WD geometry deliver more consistent damping than the Nitro alternative on rough terrain and highway inputs. Crossmembers, knuckles, and differential drop brackets correct the geometry the lift requires.

This kit is not for CCD-equipped F-150 owners — installing a standard kit on a CCD truck destroys the adaptive damping system, order F103. It is not for Tremor owners — Tremor-specific geometry requires F107F or F107N. It is not for Raptor owners. It is not for 2WD owners. It is not for 2020 or earlier F-150 owners. If maximum lift height and the most aggressive build are the goals and the extra geometry demand is acceptable, step up to F90F. If Nitro shocks at a lower price point are acceptable, order F91N — same geometry, same fitment.

Product information is compiled from manufacturer-provided data. Obsidian Forged Auto Supply is not responsible for manufacturer-driven specification updates, metadata changes, or accuracy discrepancies in the foundational data sheets.

⚠️ LTL Freight Notice: This item ships via freight carrier due to size and weight. Residential delivery is included. Freight carrier will contact you to schedule delivery.

2021–2026 Ford F-150 4WD only. CCD — order F103. Tremor — order F107F. Raptor does not fit. 2WD does not fit. Nitro shocks instead — order F91N.