FOX Performance Series 2.0 IFP Front Shock — Ford F-250/F-350 Super Duty SKU: 985-24-154

Overview

This is a FOX Performance Series 2.0 IFP smooth-body front shock for the Ford F-250/F-350 Super Duty — a monotube design using an Internal Floating Piston (IFP) to separate shock oil from a nitrogen-charged gas chamber, race-developed valving, and a one-piece 2.0" clear-anodized aluminum body. The correct target lift height for this SKU depends on model year and, for 2020 and newer trucks, on whether the truck has the Tremor package — verify your exact configuration against the table below before ordering.

Before ordering: This is a front-position shock only — it does not include a rear shock. Target lift height depends on your model year and trim: 2005–2019 trucks are rated for a 1"–2" front lift; 2020 and newer trucks are rated for a 2" front lift, except Tremor-package trucks, which use this same shock at 0" lift (stock height). Fitment coverage and drivetrain also vary by exact year and trim, especially on the F-350 — consult the Verified Fitment table rather than assuming universal fit. F-350 Limited trim is not covered for the 2017, 2025, or 2026 model years.

Required separately: Manufacturer-specified installation hardware, tools, and a professional installation are recommended; this listing does not include installation instructions or hardware beyond the shock itself. Confirm whether a matching rear shock is needed for your build — it is not included with this SKU.

Verified Fitment

Ford F-250 Super Duty

Ford F-350 Super Duty

F-350 Limited is not listed for 2017, 2025, or 2026 — no verified fitment for this SKU on those model-year/trim combinations.

Component Specifications

What Is and Is NOT Included

Included:

• One FOX Performance Series 2.0 IFP front shock, part number 985-24-154

Not included:

• Rear shock (not part of this SKU; confirm separately if needed for your build)
• Installation hardware and tools
• Professional installation or alignment services

Critical Compatibility

• Front position only: This SKU is a front shock. It does not include or substitute for a rear shock.
• Lift-height rating depends on model year and Tremor status: 2005–2019 trucks are rated for 1"–2" of front lift. 2020 and newer trucks are rated for 2" of front lift — except Tremor-package trucks, which use this same part at 0" lift (factory Tremor stock height). Confirm both your model year and whether your truck has the Tremor package before ordering.
• F-350 Limited exclusion: Not covered for 2017, 2025, or 2026 model years — no verified fitment exists for this SKU on those combinations.
• Drivetrain varies by year and trim: Most F-350 trims (Lariat, XL, XLT) are 4WD-specific across all covered years. King Ranch and Platinum are 4WD-only through 2022, then broaden to "All" drivetrains from 2023 onward. F-350 Limited is listed as "All" drivetrain throughout its coverage. Confirm your specific truck's drivetrain against the table.
• Stem top mount: Confirm this matches your vehicle's upper mounting hardware.

Installation Notes

No manufacturer installation instructions were supplied for this task. Professional installation is recommended for suspension components. Follow current FOX installation documentation for this exact part number, including torque specifications and any required hardware, before installation.

The Obsidian Take

This FOX 985-24-154 Performance Series 2.0 IFP shock is a front-position shock for the Ford F-250/F-350 Super Duty, with the correct target lift height depending on both model year and Tremor status. Pre-2020 trucks are rated for 1"–2" of lift; 2020-and-newer trucks are rated for 2" of lift, except Tremor-package trucks, which run this same shock at 0" (stock height). Confirm your exact year, trim, drivetrain, and Tremor status against the Verified Fitment table before ordering.

This Product Is For You If

• You own a Ford F-250 or F-350 Super Duty whose exact year, trim, and drivetrain combination appears in the Verified Fitment table.
• Your target ride height matches the lift-height rating listed for your specific configuration and Tremor status.
• You are replacing or upgrading the front shock specifically, not the rear.

This Product Is Not For You If

• You need a rear shock — this SKU is front position only.
• You own a 2017, 2025, or 2026 F-350 Limited — this SKU has no verified fitment for those combinations.
• You have a 2020+ truck and have not confirmed whether it has the Tremor package, since that determines whether this shock is used at 0" or 2" of lift.
• Your target lift height does not match the rating listed for your specific year/trim in the Verified Fitment table.

Product Family Reference

For the rear-position shock covering this same Ford F-250/F-350 Super Duty range, see FOX 985-24-151.

Common Questions

Is this a front or rear shock?
Front only. It does not include or substitute for a rear shock.

What lift height is this shock rated for?
1"–2" for 2005–2019 trucks. For 2020 and newer, it's rated for 2" of lift — except on Tremor-package trucks, which use this shock at 0" (stock height).

Does this fit the F-350 Limited?
Only for 2018–2024. There is no verified fitment for this SKU on the 2017, 2025, or 2026 F-350 Limited.

Why does the Tremor trim use a different lift rating?
The Tremor package already includes additional factory ride height and clearance, so this shock is used at 0" lift (stock height) on Tremor trucks, rather than the 2" lift rating that applies to non-Tremor 2020+ trucks.

What is the warranty?
FOX provides a Limited Lifetime Warranty on 2.0/2.5 Performance Series shocks purchased after 3/30/2025 (excluding sports car shocks and 2.0 Performance Series remote-reservoir shocks). See full warranty terms below.

Manufacturer Data Disclaimer

Fitment and specification data for this product are sourced from FOX Factory manufacturer fitment data and product documentation supplied for this exact part number, current as of publication. Specifications and fitment are subject to change without notice; confirm current documentation for this SKU at the time of purchase.

Required Legal, Warning, Fitment, and Return Notices

Warranty Summary: FOX Factory, Inc. warrants, to the original retail owner of each new FOX 2.0/2.5 Performance Series suspension product purchased after 3/30/2025 (excluding sports car shocks and 2.0 Performance Series remote-reservoir shocks), that the product is free from defects in materials and workmanship under normal use on the vehicle application it was designed for. This warranty covers factory defects in material and workmanship other than finish and coatings. For products not meeting the post-3/30/2025 purchase condition, FOX's standard Limited One (1) Year Warranty on suspension products applies instead, running from the date of original retail purchase from an authorized FOX dealer.

This warranty is conditioned on normal operation and proper maintenance as specified by FOX; is non-transferable and applies only to the original retail owner; and is void if the product is subjected to abuse, neglect, unauthorized repair or service, alteration, modification, accident, or other abnormal or improper use. FOX is not liable for removal, installation, or reinstallation costs, including labor. If FOX determines a product is covered, it will be repaired or replaced with a comparable model at FOX's sole discretion — this is the exclusive remedy, and incidental, consequential, or punitive damages are excluded. Normal wear and tear, and failures from abuse, improper assembly, neglect, alteration, improper maintenance, crash, misuse, or collision are not covered. This warranty gives specific legal rights, which may vary by state or country.