FOX Performance Series 2.0 IFP Rear Shock — Ford F-250/F-350 Super Duty SKU: 985-24-151

Overview

This is a FOX Performance Series 2.0 IFP smooth-body rear 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. Exact fitment, drivetrain coverage, and correct lift-height rating vary significantly by model year and trim — verify your exact configuration against the table below before ordering.

Before ordering: This is a rear-position shock only — it does not include a front shock. Fitment, drivetrain coverage, and the correct target lift-height range all vary by exact model year and trim; consult the Verified Fitment table below rather than assuming universal fit across all Super Duty years. Two distinct lift-height ratings exist for this same SKU depending on year/trim: 0"–1" and 2.5"–4" — ordering for the wrong target lift height will not correctly fit your application. 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 front 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 rear shock, part number 985-24-151

Not included:

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

Critical Compatibility

• Rear position only: This SKU is a rear shock. It does not include or substitute for a front shock.
• Lift-height rating is configuration-specific: The same part number is rated for two different target lift-height ranges — 0"–1" or 2.5"–4" — depending on your exact model year and trim. Confirm your target ride height against the Verified Fitment table before ordering; the two ratings are not interchangeable.
• 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 and most 2025 F-250 trims are listed as "All" drivetrain. Confirm your specific truck's drivetrain against the table.
• F-350 Limited exclusion: Not covered for 2017, 2025, or 2026 model years — no verified fitment exists for this SKU on those combinations.
• F-250 fitment structure differs by year: 2017–2024 and 2026 are covered as "All" submodels (4WD only); 2025 is broken out by individual trim, with XL specifically restricted to 4WD while other 2025 trims show "All" drivetrain.

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 985-24-151 Performance Series 2.0 IFP shock is a rear-position shock for the Ford F-250/F-350 Super Duty, with fitment that depends closely on exact model year, trim, and drivetrain — and, critically, on which of two target lift-height ranges (0"–1" or 2.5"–4") matches your truck's configuration for that specific year and trim. This is not a universal "fits all Super Duty" shock: confirm your exact year, trim, and drivetrain against the Verified Fitment table, and confirm your target ride height matches the listed lift-height rating for your configuration, 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.
• You are replacing or upgrading the rear shock specifically, not the front.

This Product Is Not For You If

• You need a front shock — this SKU is rear position only.
• You own a 2017, 2025, or 2026 F-350 Limited — this SKU has no verified fitment for those combinations.
• Your target lift height does not match the rating listed for your specific year/trim in the Verified Fitment table.
• You have not confirmed your truck's drivetrain against the table, where coverage varies by year and trim.

Common Questions

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

Does this fit every Ford Super Duty from 2017–2026?
No. Fitment depends on the exact combination of model year, trim, drivetrain, and target lift height. Check the Verified Fitment table for your specific configuration.

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 are there two different lift-height ratings for the same part number?
This shock's length and valving are correct for either a 0"–1" or a 2.5"–4" lift range depending on the specific truck year and trim — not both simultaneously. Match your target lift height to the rating listed for your exact configuration.

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.