Zone Offroad 5-Inch Radius Arm Lift Kit with FOX 2.0 Adventure Series Shocks — Ford F-250/F-350 Super Duty SKU: ZONF125F

This kit lifts the 2023–2026 Ford F-250 and F-350 Super Duty 5 inches up front and 3 inches in the rear using full-length gas-specific coil springs, heavy-duty fabricated steel radius arms, a forged pitman arm, and a track bar relocation bracket — paired with FOX 2.0 Adventure Series shocks and a rear block kit to level the stance and clear up to 37-inch tires.

Before ordering: Fits 2023–2026 Ford F-250/F-350 Super Duty, 4WD, gas models only. Does not fit diesel. Does not fit vehicles with radius arm-mounted ride height sensors. Tremor models fit but will not achieve the full advertised lift height. 2026 fitment is confirmed for F-250 only — F-350 2026 is not yet verified in the available fitment data. 2025 does not appear in the supplied fitment table and is not published here until confirmed. Confirm driveshaft configuration before ordering — 2-piece rear driveshaft trucks require a carrier bearing drop kit (sold separately).

Required separately: Carrier bearing drop kit (required for 2-piece rear driveshaft models, sold separately). ADAS sensor recalibration (cameras, radar, LiDAR) by a dealership or ADAS service center is required after installation — all associated costs are the vehicle owner's responsibility.

Verified Fitment

2026 fitment: Confirmed for F-250 Super Duty only. F-350 Super Duty 2026 is not confirmed in the available fitment data.

2025 fitment: Not confirmed in the available fitment data. Do not order for a 2025 truck until fitment is verified.

Diesel exclusion: Gas models only. Does not fit diesel Super Duty trucks.

Tremor models: Tremor models are mechanically supported but will not achieve the full 5-inch advertised lift height due to the taller factory ride height. Final ride height on a Tremor will match that of standard Super Duty models at this lift.

Radius arm ride height sensors: Does not fit vehicles with radius arm-mounted ride height sensors.

Ford Recall 21S31: Zone Offroad recommends completing Ford Safety Recall 21S31 (rear axle/driveline vibration) prior to installing this kit on affected trucks.

Component Specifications

What Is and Is NOT Included

Included:

• Heavy-duty fabricated steel radius arms
• Full-length gas-specific coil springs (front, 5" lift)
• Forged pitman arm
• Heavy-duty fabricated track bar relocation bracket
• Rear block kit (Without Factory Overload — this configuration)
• FOX 2.0 Adventure Series shocks, front and rear
• All required installation hardware

Not included:

• Carrier bearing drop kit (required for 2-piece rear driveshaft models, sold separately)
• Dual stabilizer upgrade (optional, sold separately — see note below)
• ADAS recalibration (required post-installation, performed by dealership or ADAS service center)

Dual stabilizer note: The optional dual stabilizer upgrade adds a dual opposing steering stabilizer in addition to the single OE replacement. Confirm availability when ordering if this upgrade is desired.

Critical Compatibility

• Diesel exclusion: Does not fit diesel models. Gas only.
• Radius arm ride height sensors: Does not fit vehicles with radius arm-mounted ride height sensors.
• Tremor trim: Supported mechanically, but the final ride height will match standard Super Duty models — not the full 5-inch figure — due to the Tremor's taller factory stance.
• 2-piece rear driveshaft: A carrier bearing drop kit is required to reduce post-lift driveline angles and avoid driveshaft vibration. Not included — confirm driveshaft configuration and source the drop kit before ordering.
• Ford Recall 21S31: If the truck is subject to Ford Safety Recall 21S31 (rear axle/driveline vibration), complete that recall procedure before installing this lift.
• ADAS recalibration: After installation, cameras, radar, LiDAR, and other ADAS sensors (lane keeping, blind-spot detection, adaptive cruise control, parking assistance, and related systems) require recalibration by a dealership or certified ADAS service center. All recalibration costs are the vehicle owner's responsibility.
• Tire fitment: 37x12.50 tires may require minor trimming. Recommended wheel and tire: 37x12.50 with 20x9 and 4.5" backspacing.
• Factory wheels: Factory wheels are compatible when used with the factory/original equipment tire size.
• Rear block: This configuration is Block Kit Without Factory Overload. If your truck has a factory overload spring pack, confirm the correct block configuration before ordering.
• Minimum engagement — rear block: Block kit replaces the factory block. The stock block will not be reinstalled.

Installation Notes

Professional installation is strongly recommended for this kit, which is rated Difficult with an estimated 4–6-hour install time. A professional alignment must be completed after installation. ADAS sensor recalibration by a dealership or ADAS service center is also required after installation.

Required tools: 30mm socket, 46mm socket, hydraulic floor jack and jack stands, pitman arm puller.

Before beginning installation: Confirm driveshaft configuration. If the truck has a 2-piece rear driveshaft, a carrier bearing drop kit must be on hand. If the truck is subject to Ford Recall 21S31, complete that recall procedure first.

Refer to the current Zone Offroad installation instructions supplied with this kit for complete procedures, torque specifications, and all safety requirements.

The Obsidian Take

The ZONF125F gives the 2023–2024 F-250/F-350 Super Duty (and 2026 F-250) a proper 5-inch radius arm lift rather than a spacer-based setup — gas-specific coil springs, fabricated radius arms for caster correction, a forged pitman arm, and a track bar bracket to recenter the axle, with FOX 2.0 Adventure Series shocks included. Four conditions to confirm before ordering: gas models only; radius arm ride height sensor trucks are excluded; 2-piece driveshaft trucks need a carrier bearing drop kit (not included); and ADAS recalibration is required post-installation at the owner's expense. Tremor buyers: this kit fits but the taller factory stance means final ride height matches standard Super Duty, not an additional 5 inches over Tremor height.

This Product Is For You If

• You own a 2023–2024 Ford F-250 or F-350 Super Duty (or a 2026 F-250), 4WD, gas model, in a supported trim.
• You want a 5-inch radius arm lift with corrected caster and steering geometry — not a spacer kit.
• You want FOX 2.0 Adventure Series shocks included.
• You plan to run up to 37" tires and are using the recommended 20x9, 4.5" backspacing wheel setup.
• You are prepared for a Difficult-rated, 4–6-hour installation requiring a pitman arm puller and hydraulic jack stands.
• You have confirmed your driveshaft configuration and are prepared to source a carrier bearing drop kit if needed.
• You are prepared to complete ADAS recalibration at a dealership or ADAS service center after installation.

This Product Is Not For You If

• Your Super Duty is a diesel model.
• Your vehicle is not a 2023–2024 F-250/F-350 Super Duty or 2026 F-250, in a supported trim.
• Your truck has radius arm-mounted ride height sensors.
• You have a 2-piece rear driveshaft and are not prepared to source a carrier bearing drop kit before installation.
• You own a 2025 or 2026 F-350 Super Duty — those years are not confirmed in the available fitment data.
• You are a Tremor owner expecting 5 full inches of additional lift over Tremor ride height — the final stance will match standard Super Duty height.
• You are not prepared to complete ADAS recalibration after installation.
• You are not prepared for a Difficult-rated installation requiring a pitman arm puller.

Common Questions

Does this kit fit diesel Super Duty trucks?
No. Gas models only.

Does this fit the F-250/F-350 Tremor?
It fits mechanically, but Tremor models will not achieve the full advertised 5-inch lift. The taller factory Tremor ride height means final stance matches standard Super Duty models at this lift height.

Does this fit 2025 F-250 or F-350?
2025 does not appear in the verified fitment data for this SKU. Do not order for a 2025 truck until fitment is confirmed.

Does this fit 2026 F-350 Super Duty?
2026 F-350 Super Duty is not confirmed in the available fitment data. 2026 fitment is verified for F-250 Super Duty only.

My truck has a 2-piece rear driveshaft — what do I need?
A carrier bearing drop kit is required to reduce post-lift driveline angles and prevent driveshaft vibration. It is not included with this kit. Confirm your driveshaft configuration and source the drop kit before ordering.

What is ADAS recalibration and do I really need it?
After installation, advanced driver assistance systems — including lane keeping, blind-spot detection, adaptive cruise control, and parking assistance — require recalibration to function correctly at the new ride height. This must be performed by your dealership or a certified ADAS service center. All recalibration costs are the owner's responsibility.

Will my factory wheels fit?
Factory wheels fit when paired with the factory/original equipment tire size. For an upgrade to 37" tires, see the recommended wheel and tire specs in Critical Compatibility.

Will 37" tires fit without trimming?
37x12.50 tires may require minor trimming. Confirm before mounting.

Does my truck have a Ford Recall 21S31?
Ford Recall 21S31 addresses rear axle/driveline vibration on certain trucks. Zone Offroad recommends completing this recall before installing the lift kit. Check with your Ford dealership to confirm whether your truck is affected.

What does this kit's warranty cover?
This kit is backed by Factory Protection Plus, which includes a 5-year/60,000-mile drivetrain warranty plus Zone Offroad's Limited Lifetime Warranty. See the full warranty summary below.

Manufacturer Data Disclaimer

Fitment, specification, included-component, and installation data for this kit are sourced from Zone Offroad manufacturer documentation and OFAS-verified product data current as of publication. Manufacturer specifications and included components are subject to change without notice; confirm current documentation for this SKU at the time of purchase.

Required Legal, Warning, Fitment, and Return Notices

Installation Warning: Zone Offroad strongly recommends installation by a certified mechanic. If installed by a non-certified person, the installer must read, understand, and follow all instructions and warnings before beginning.

ADAS Notice: Recalibration of your vehicle's Advanced Driver Assistance System cameras, radars, LiDAR, and other sensors may be required by your dealership or ADAS service center after installation. All charges and expenses related to recalibration are the sole responsibility of the vehicle owner.

California Residents: Confirm California compliance for modified-height vehicles before purchase.

Warranty Summary: This kit is backed by Factory Protection Plus, which provides a 5-year/60,000-mile drivetrain warranty combined with Zone Offroad's Limited Lifetime Warranty for the original retail purchaser. Zone Offroad also provides a 3-year/36,000-mile Worry-Free Warranty on all hard parts and wearable items (ball joints, tie rod ends, and bushings) to the original retail purchaser, based on whichever limit is reached first. After the 3-year/36,000-mile period, the Limited Lifetime Warranty applies, covering defects in materials and workmanship for as long as the original purchaser owns the vehicle on which the product was installed. Warranty coverage does not extend to consumer opinions regarding ride comfort, fitment, or design.

Finish Warranty: Product finish may be considered for warranty within 12 months of purchase. Damage caused by tools, road debris, trail use, general maintenance, or salty and corrosive environments is excluded.

FOX 2.0 Adventure Series Shocks: Shock oil seal wear is not covered under warranty. Leaking shock seals that occur within 2 years of purchase, free from contamination, damage, or abnormal wear resulting from misuse, may be considered for warranty review.

Commercial vehicles: Warranty is limited to 1 year for commercial application vehicles.

Warranty exclusions: This warranty does not cover damage or failure resulting from abuse, neglect, accident, fire, improper installation or adjustment, or corrosion; modifications beyond Zone Offroad specifications; use in an application other than those specified in current Zone Offroad documentation; competition or racing use; or products that wear out due to the use of larger-than-specified wheels or tires.

Not covered under any warranty term: Labor for removal or reinstallation, expedited freight charges, damage to related vehicle components, vehicle downtime costs, lost profits, and incidental or consequential damages.

To file a claim: Contact Zone Offroad directly at Tech-Zone@ridefox.com or 888-998-9663. Only Zone Offroad can approve or deny a warranty request. Proof of purchase is required, including customer name, purchase date, vehicle mileage, product number, and price paid. Product photos are also required. If the claim is approved, Zone Offroad will replace or repair the product and cover ground shipping at no cost. If the defective part must be returned, a prepaid return shipping label will be provided.