What Ride Quality Can I Expect from Fox 2.5s?

Fox 2.5 shocks are designed to deliver a more controlled and capable ride than smaller shocks, especially when driving off-road or carrying additional weight. The larger 2.5-inch shock body holds more oil and provides greater damping capacity, which helps the suspension stay composed over rough terrain, washboard roads, and repeated bumps. On the road, most drivers experience a ride that feels firm but very stable, with improved control over body movement, braking dive, and cornering compared to stock suspension. Off-road is where they really shine—Fox 2.5 shocks can absorb bigger impacts and maintain consistent performance over long rough sections because they manage heat and repeated suspension movement more effectively than smaller shocks. Overall, Fox 2.5 shocks are a great choice if you want a suspension upgrade that still drives well on the street but offers serious improvement in control, comfort, and confidence when the terrain gets rough.

Are Fox 2.5 Shocks Adjustable?

Some Fox 2.5 shocks are adjustable, but it depends on the specific model. Many standard Fox 2.5 Performance Series shocks come with factory-tuned valving and no external adjusters, making them a simple bolt-on upgrade designed to work well right out of the box. Higher-end versions—such as Fox 2.5 Performance Elite or Factory Series shocks—often include external adjusters, typically located on the reservoir. These can allow you to adjust compression damping, and in some cases both high-speed and low-speed compression, so you can dial in the ride for different terrain, loads, or driving styles. In short, not every Fox 2.5 shock is adjustable, but many premium versions offer tuning options that let you fine-tune the suspension for your specific vehicle setup and driving conditions.

How Do I Choose the Right Fox 2.5 Shocks for my Vehicle?

Click the 'Select Your Vehicle' button above the 'Add to Cart' button to make sure the shocks fit your exact vehicle. If needed, the site will send you to the right shocks for your ride. If your vehicle has been lifted, use the dropdown menu to pick the correct lift height. For example, if you have a Rough Country 6-inch lift kit, choose Front 4–6" and Rear 3–4" (the rear is usually smaller than the front). Still not sure? Our sales team is happy to help.

How Long Do Fox 2.5 Shocks Last?

Fox 2.5 shocks are built for durability and hard use, but like most high-performance suspension components, they’re designed to be serviced periodically rather than replaced like basic shocks. For vehicles that are primarily driven on the street, many owners can expect around 40,000–50,000 miles before the shocks benefit from a rebuild or service to restore peak performance. If the vehicle sees frequent off-road use, heavy loads, or aggressive driving, service intervals may come sooner because rough terrain and heat put more strain on the seals and internal oil. Even so, with proper maintenance and occasional rebuilds, Fox 2.5 shocks can provide years of reliable performance and tens of thousands of miles of use. In short, Fox 2.5 shocks are designed to last a long time—but keeping them performing their best may involve servicing them periodically, especially if your truck spends a lot of time off the pavement.

Fox

2.5 HTO Performance Series Rear Shock w/ 2-3.5"

2005-2016 Ford F-350 4WD

$346.95

Estimated Delivery in 3-4 weeks

Fox

2.5 HTO Performance Series Rear Shock w/ 2-3.5"

2005-2016 Ford F-350 4WD

$346.95

Estimated Delivery in 3-4 weeks

Authorized dealer

Free shipping on orders above $250 within the lower 48 United States

Brand new parts with warranty coverage

Free 30-day return and exchange on qualifying orders

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Part Numbers & Details

Single Rear Shock

Includes one rear shock; order two when replacing both sides.

Hydraulic Top Out Control

FOX HTO technology adds position-sensitive rebound damping to reduce harsh top-outs and improve control, especially with heavier tires and lifted suspension.

Built for Ford Super Duty 4WD

Vehicle-specific valving and bolt-on mounts are designed for 2005-2016 Ford F-350 4WD models. Match each part number to the listed Rear 2-3.5" configuration.

FOX Limited Lifetime Warranty

Eligible FOX 2.5 Performance Series products are backed by a limited lifetime warranty for the original retail purchaser, subject to FOX warranty terms.

Specifications

Part Number	Lift	Position	Item	Quantity	Extended Length	Compressed Length	Travel	Top Mount	Bottom Mount	Body Diameter	Body Material	Reservoir Type
987-24-055	2-3.5"	Rear	Shock Absorber	1	30.58"	19.39"	11.19"	Eyelet	Eyelet	2.5"	Aluminum	Internal Floating Piston

Product Details

FOX part number 987-24-055 is a 2.5 HTO Performance Series rear single shock for one side of a 2005-2016 Ford F-350 4WD suspension. Its vehicle-specific damping and durable 2.5-inch aluminum shock body give this Super Duty a controlled, confidence-inspiring feel on the road and on rough terrain. It is intended for 2-3.5 inches of rear lift, giving moderately lifted Super Duty trucks damping matched to their increased ride height. Hydraulic Top Out technology adds position-sensitive rebound control near full extension to help reduce harsh top-outs, while the internal floating piston separates the oil and nitrogen for consistent damping. This rear configuration provides 11.19 inches of travel with a 30.58-inch extended length and 19.39-inch compressed length; verify your actual lift height before ordering.

Compatibility List

Year	Make	Model	Drive	Position	Lift
2016	Ford	F-350	4WD	Rear	2-3.5"
2015	Ford	F-350	4WD	Rear	2-3.5"
2014	Ford	F-350	4WD	Rear	2-3.5"
2013	Ford	F-350	4WD	Rear	2-3.5"
2012	Ford	F-350	4WD	Rear	2-3.5"
2011	Ford	F-350	4WD	Rear	2-3.5"
2010	Ford	F-350	4WD	Rear	2-3.5"
2009	Ford	F-350	4WD	Rear	2-3.5"
2008	Ford	F-350	4WD	Rear	2-3.5"
2007	Ford	F-350	4WD	Rear	2-3.5"
2006	Ford	F-350	4WD	Rear	2-3.5"
2005	Ford	F-350	4WD	Rear	2-3.5"

FOX Product Warranty

FOX provides limited warranty coverage for eligible automotive, truck, motorsports, and suspension products. The warranty period depends on the product type and original purchase date.

Coverage applies only to the original retail purchaser.
The product must be purchased new from an authorized FOX source.
The warranty is not transferable to another owner.
The product must be used on the vehicle application for which it was designed.
Proper installation, operation, service, and maintenance are required.

Limited Lifetime Warranty

Eligible FOX 2.0 and 2.5 Performance Series suspension products purchased after March 30, 2025, are covered against qualifying defects in materials or workmanship for the original retail owner's lifetime.

Applies to eligible products used on passenger cars or light-duty trucks.
The product must be operated under normal use and operating conditions.
Coverage applies only when installed on the intended vehicle application.
Finish, coating, and cosmetic concerns are not covered.
Sports car shocks are excluded from the Limited Lifetime Warranty.
FOX 2.0 Performance Series remote-reservoir shocks are excluded from the Limited Lifetime Warranty.

Limited One-Year Warranty

New FOX suspension products that do not qualify for the Limited Lifetime Warranty are generally covered against qualifying defects in materials or workmanship for one year from the original retail purchase date.

Applies to eligible products purchased from an authorized FOX dealer.
Applies to eligible FOX suspension supplied as original equipment by an authorized vehicle manufacturer.
The original retail purchase date determines when coverage begins.
A longer warranty period may apply when required by local law.
Products excluded from the Limited Lifetime Warranty may fall under this one-year warranty.

Upper Control Arm Warranty

FOX upper control arms include a Limited Lifetime Warranty against qualifying structural defects in materials or workmanship, subject to the exclusions below.

The main upper control arm structure is eligible for lifetime coverage.
Serviceable components are covered for 12 months.
Serviceable components include spherical bearings, rod ends, and other fabricated hardware.
Appearance and finish concerns are covered for 12 months.
Damage caused by use, abuse, impact, or improper maintenance is not covered.

Upper Control Arm Sounds

Certain FOX upper control arm models and vehicle configurations may produce performance-oriented sounds during normal operation.

Squeaks or creaks may be normal and do not always indicate a mechanical defect.
Normal operating sounds are not covered as warranty defects.
Clunks, thuds, looseness, or unusual movement should be inspected by a qualified mechanic.
Repairs are covered only when FOX confirms a defect in materials or workmanship.

What the Warranty Covers

FOX warranty coverage applies to eligible factory defects in materials or workmanship during the applicable warranty period.

The product must have been operated under normal conditions.
The product must have been properly installed and maintained.
FOX determines whether a product qualifies for warranty coverage.
An approved product may be repaired or replaced at FOX's discretion.
A replacement may be a comparable model rather than the exact original product.
Repair or replacement is the exclusive remedy provided under the warranty.

What Is Not Covered

The FOX warranty does not cover normal wear, incorrect use, improper installation, unauthorized service, modifications, or damage caused by outside factors.

Normal wear and tear
Finish, coating, or cosmetic deterioration unless specifically covered
Abuse, neglect, misuse, or excessive use
Improper assembly or installation
Improper or unauthorized repair, service, or maintenance
Altered or modified products
Accidents, crashes, impacts, or collisions
Use outside the product's intended vehicle application
Damage caused by abnormal or improper operating conditions
Sounds resulting from the normal operation of performance components

Installation & Maintenance Requirements

Warranty coverage requires the FOX product to be correctly installed, operated, inspected, serviced, and maintained.

Follow all FOX installation instructions and service procedures.
Use the product only for its intended vehicle and application.
Inspect the product regularly for leaks, damage, looseness, or unusual wear.
Complete required maintenance at the intervals specified by FOX.
Use qualified technicians for installation, service, and repairs.
Do not alter, modify, or perform unauthorized repairs on the product.

Warranty Remedy

If FOX determines that a product qualifies for warranty coverage, FOX may repair the product or replace it with a comparable model.

FOX makes the final decision regarding warranty eligibility.
FOX chooses whether an approved product will be repaired or replaced.
A replacement product may differ from the original model.
Repair or replacement is the only remedy available under the warranty.

Costs Not Covered

FOX warranty coverage is limited to the approved repair or replacement of the eligible product.

Product removal costs
Installation or reinstallation costs
Labor charges
Alignment or related service expenses
Vehicle downtime or loss of use
Incidental or consequential expenses or damages
Punitive damages
Other related or ancillary fees

Removal, installation, reinstallation, labor, and related expenses are the customer's responsibility.

Warranty Limitations

This is the only warranty made by FOX for the covered suspension products and components.

No warranty applies beyond the coverage described in FOX's published warranty.
Implied warranties may be excluded where permitted by law.
FOX is not responsible for incidental, consequential, or punitive damages.
Some states or countries do not allow certain exclusions or limitations.
Consumers may have additional legal rights depending on their location.
If one limitation is found unenforceable, the remaining warranty terms remain in effect.

Before Requesting Warranty Service

Contact an authorized FOX dealer or FOX Customer Support before removing, repairing, modifying, or returning a product.

Keep the original dated proof of purchase.
Record the product part number and vehicle information.
Document the concern with clear photographs or video when possible.
Do not perform unauthorized repairs before the product is evaluated.
Follow all return, inspection, and service instructions provided by FOX.

FOX Warranty Support

Contact the original authorized FOX dealer or FOX Customer Support for warranty assistance, product evaluation, or service instructions.

Phone: 1-800-FOX-SHOX
Use FOX's official website to locate an authorized dealer or service center.
Do not return a product until FOX or an authorized dealer provides instructions.

Shipping Info

Free Shipping on most orders to the lower 48 U.S. states. Truck freight items (over 100 lbs) and custom orders require a separate shipping quote.

Applies to items like axles, leaf springs, and long-travel kits.
No international shipping on freight items - only to U.S.-based freight forwarders.
Worldwide shipping available: Canada, Europe, UAE, Australia, and most of Asia.

Returns & Exchanges

30-Day Return Policy - Items must be new, unused, uninstalled, and include all original hardware.

No restocking fees for exchanges or gift card credit.
10% restocking fee on refunds, returns cost us real money, so the 10% helps keep the lights on.
Installed, damaged, or dirty parts cannot be returned.

Need help? Use Live Chat or Email Us anytime.

Start a Return or Exchange

Return Shipping Responsibility

Shock Surplus Package and Order Protection plan provides prepaid return labels for any returned packages, this fee varies by product.

Our mistake (misboxed, wrong item, damaged): We cover the cost of return shipping.
Your mistake (wrong item ordered, fitment error, changed mind): Return shipping is your responsibility.

Under 50 lbs: Discounted carrier rate (deducted from your refund).
Over 50 lbs: Discounted carrier rate + $25 oversize fee (deducted).

Refunds

Refunds are issued within 5-7 business days of receiving your return.

Funds typically post to your account in 1-3 business days depending on your payment method.
There is a 10% restocking fee on all refunds. We do not get our original shipping, labor, or transaction fees back - so the 10% restocking fee keeps the lights on.
You will receive an email once your refund is processed.

International Orders

All international orders are final sale.
Returns via freight forwarders only accepted if the product has not left the U.S.
Import taxes and fees are the buyer's responsibility and not included in our shipping charges.
We are not responsible for goods once exported outside the U.S.

Why Shock Surplus

1,000,000+ Shocks Shipped

The Premier Suspension Specialists

Authorized Dealer

Brand New - Warranty Backed

Free Shipping

Orders Over $250 - Lower 48 States

30-Day Returns

Free Exchange on Qualified Orders