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Truck Hardware Gatorback Gunmetal FX4 Mud Flaps - Set of 4 - Fits 2017-2022 Ford F-250/F-350

Part #:
GM1223CUTFX4~GM1226FX4~GB759841~GB759842
Sale Price
$584.80
$731.00
Free Shipping
ON ORDER — Expected to Ship in 10-14 Days

Additional details

    ⚠️Fits single rear wheel trucks
  • Includes (4) 12" wide mud flaps (2 driver/2 pass)
  • No body drilling required for installation
  • Front tire coverage - 11.5" below fender
  • Rear tire coverage - 12.5" below fender
  • Lifetime limited warranty

Front Bracket and Flap Installation

Step by step video

Rear Bracket and Flap Installation

Step by step video

Putting slots in the flaps

Here is an easy way to cut the slots in your flaps

Super Duty Mud Flap Set

What you get with the set

Gatorback Plate Finishes

Here are the different plate finishes

At a glance

Customer sentiment is overwhelmingly positive: buyers repeatedly praise Gatorback/SharpTruck mud flaps as premium, heavy‑duty, great-looking, vehicle-specific products that provide excellent protection, with standout customer service and fast shipping. The main negatives are high price, occasionally challenging/long installations (especially rears/dually), and periodic hardware/instructions/packaging issues or minor fitment quirks on certain trims/oversized tires.

What Customers Liked

  • Thick/heavy rubber, substantial weight, rugged/OTR-grade feel; holds up for years (5–10+ years reported), flexible in cold/snow, doesn’t “sail” at highway speed; strong brackets add stability.
  • Look “sharp,” “classy,” and OEM-like; logo/plate options (Ford/Chevy/Ram/AT4X/Z71/flags, etc.) get many compliments and add ‘pop’.
  • Many report perfect fit/‘like a glove,’ good tire coverage, options for offsets/oversized tires (e.g., offset versions preventing rubbing), adjustable positioning via slotted holes.
  • Significantly reduces mud/road salt/slush on running boards/steps and sides; helps prevent rock chips and protects trailers/RVs/boats; improves cleanliness on gravel/dirt roads and in winter conditions.
  • Often installs using factory holes and avoids drilling into metal body; videos and written instructions frequently cited as helpful; many install without removing wheels (fronts especially).
  • Consistently praised for responsive support, warranty replacements for tears/rips, quick resolution of shipping damage/wrong parts/missing items, and proactive communication/updates.
  • Fast delivery (often 2–5 days), accurate orders/fitment tools, good packaging noted by many; easy ordering and exchanges/returns.
  • Removable lower section on some models appreciated for added clearance during off-roading, then quick reinstall.

Things to Consider

  • Frequently described as expensive/‘hard pill to swallow’ (some citing $600–$1000+), though many still say it’s worth it.
  • Rears and dually setups often challenging/time-consuming; some recommend removing rear wheels, using a right-angle drill, clamps, or a helper; alignment can take time.
  • Some find written directions vague/confusing; hardware not clearly labeled (washers/spacers), left/right not distinguished, videos not always model-specific; “no-drill” marketing criticized when drilling in liners/plastic is still required.
  • Occasional missing screws/washers/clips/parts; mixed metric/SAE hardware complaints; plastic fasteners/clips stripping or pulling out; desire for stainless/black hardware and better washer/spacer labeling.
  • Some reports of rubbing with oversized tires/turning lock; minor misalignment of holes/templates; driver/passenger side fit differences; not perfect fit for some newer model years or with wheel-well liners/fender flares/steps.
  • Several note rear support brackets feel ‘necessary’ but are not always included; frustration at needing to add brackets separately or not being told upfront.
  • A few cases of brackets coming loose in transit causing scratches; damaged outer boxes; occasional wrong color/plate shipped.
  • Silver fasteners/washer heads stand out; some plates/finishes streak or rust (rare report of rust forming on logo); desire for thicker metal in certain kits.
  • Some note flaps hang low for off-road use; risk of tearing in deep snow, tall grass, or trail obstacles (though removability helps on some models).
AI-generated from the text of customer reviews

Most Helpful

Very good quality
5
Very easy to install when doing so when watching the YouTube video. Installed on a ‘22 F-350 Tremor.
2020 F250 Super Duty FX4
5
Ordered the rear set of 12" X 26" flaps and Brackets for my 2020 Super Duty.  The installation took longer than expected due to having to use the template and drill holes, cut slots, etc.  My truck also did not have the factory rear wheel well liners and I had purchased some from a different vendor.  I installed everything at the same time so drilling holes to line up the liner and the brackets took quite a bit of planning.  Overall, everything turned out well in the end.  I did paint the brackets black so as to not have them stand out so brightly against the black flaps.  Time will tell on the durability of the flaps and brackets.
FX4 GatorBack Mud Flaps
5
Had body shop install them. Look great, fast service :)

Most Recent

Gatorback mud flaps& brackets
5
very well made they are har
Good but Need Markings
4
These worked good, but it would be nice to have them marked driver side or passenger side.  Also the screws could be a little shorter.  Overall good product.

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Truck Hardware Gatorback Gunmetal FX4 Logo Mud Flaps - Set

Elevate the look of your Ford F-250 or F-350 Super Duty with the Truck Hardware Gatorback Gunmetal FX4 Logo Mud Flap Set. Specifically designed for 2017-2022 Ford F-250 and F-350 single rear wheel pickup trucks, these mud flaps combine rugged protection with a refined gunmetal finish, giving your truck a distinctive, modern edge. The 12" wide heavy-duty rubber flaps provide top-tier defense against rocks, mud, gravel, and road debris, keeping your truck cleaner for longer and safeguarding the paint from chips and damage. As an authorized Ford Accessory, these mud flaps ensure that your truck's warranty remains intact, giving you both style and peace of mind. Built for truck enthusiasts who demand quality, durability, and a bold appearance, the Gatorback Gunmetal FX4 series is designed to impress.

This set includes 12"x23" cut style front flaps and 12"x26" full style rear flaps, along with custom-fit front and rear mounting brackets for easy, no-drill installation. The officially licensed FX4 logo is die stamped on polished 304 stainless steel plates with a striking gunmetal finish, giving these mud flaps a sleek and contemporary look. The front flaps offer 11.5" of tire coverage from the bottom of the fender to the bottom of the flap, while the rear flaps provide 12.5" of coverage. Constructed from 1/2" thick heavy-duty virgin rubber, these mud flaps are engineered to withstand the toughest conditions, ensuring a long-lasting, clean appearance for your truck.

Installation is straightforward with custom-fit mounting brackets that utilize existing factory fasteners and mounting points—no body drilling required. All necessary hardware is included to ensure a secure and straightforward installation that can be completed with basic tools. These Gatorback mud flaps are designed to work with step bars, power boards, and side steps, providing versatility for different truck setups. They are also compatible with aftermarket fender flares, as long as the factory mounting locations are accessible. Please note that the mud flaps will only extend as far as an OEM flare would and may not sit flush with larger, more aggressive fender flares. The rubber portion of the mud flaps is backed by a limited lifetime warranty, ensuring your investment is protected. If the rubber wears out under normal conditions, Truck Hardware will replace it at no cost.

Key Features

  • Custom Fit for Ford Super Duty: Tailored specifically for 2017-2022 Ford F-250 and F-350 single rear wheel models, providing precise fit and effective coverage.
  • Gunmetal Finish Stainless Steel Plates: Features 304 stainless steel plates with a durable gunmetal finish, combining style with corrosion resistance to keep your mud flaps looking sharp.
  • Heavy-Duty Rubber Construction: Made from 1/2" thick premium virgin rubber, offering exceptional durability and protection against rocks, mud, and road debris.
  • No-Drill Installation: Includes custom-fit mounting brackets for front and rear flaps, allowing for easy installation using factory mounting points without any body drilling.

Material Quality

The Gatorback Gunmetal FX4 Logo Mud Flap Set is crafted from high-quality virgin rubber, offering excellent flexibility and durability even in extreme conditions. The cold-formed 304 stainless steel plates are finished with a sleek gunmetal coating, providing a refined appearance that stands up to harsh environments. Cold-forming enhances the plate's strength and resistance to corrosion, ensuring that the mud flaps maintain their premium look over time.

Installation Details

This mud flap set includes custom-fit mounting brackets for both front and rear flaps, using existing factory fasteners and mounting points for a hassle-free, no-drill installation. All necessary hardware is provided, and installation can be completed with basic tools. The mud flaps are designed to sit flush against the wheel well, ensuring compatibility with step bars, power boards, and side steps. Additionally, the mud flaps can work with aftermarket fender flares, provided you have access to the factory mounting locations. The mud flaps will only extend out as far as an OEM flare would and will not sit flush with larger, more aggressive flares.

Tire Coverage

  • Front Flaps: 11.5" of tire coverage from the bottom of the fender to the bottom of the flap.
  • Rear Flaps: 12.5" of tire coverage from the bottom of the fender to the bottom of the flap.

What's Included

  • Two 12"x23" cut style front mud flaps (GM1223CUTFX4)
  • Two 12"x26" full style rear mud flaps (GM1226FX4)
  • Custom-fit front mounting brackets (GB759841)
  • Custom-fit rear mounting brackets (GB759842)
  • All necessary mounting hardware

Warranty Information

Truck Hardware Gatorback mud flaps come with a limited lifetime warranty on the rubber portion. This warranty covers replacement due to normal wear and tear for the original owner. It does not cover damage resulting from abuse or extend to mounting hardware, brackets, or plates.

Terms

  • Virgin Rubber: High-quality, unprocessed rubber known for superior durability and flexibility.
  • Cold-Formed 304 Stainless Steel: Stainless steel shaped without heat, enhancing its strength, durability, and resistance to corrosion. The gunmetal finish provides an additional layer of protection and style, ensuring the mud flaps maintain their refined look.
  • No-Drill Installation: Installation method that uses existing factory mounting points, eliminating the need to drill into the vehicle body.

With the Truck Hardware Gatorback Gunmetal FX4 Logo Mud Flap Set, you get unmatched protection and sleek, rugged style. Built to last and designed to enhance your Ford Super Duty, these mud flaps are the perfect combination of form and function for any truck owner looking for a bold upgrade.

BrandGatorback by Truck Hardware
Length26 inch(es)
Width12 inch(es)
Height.5 inch(es)
Weight25 lb(s)

  • 2022 Ford F-250 Super Duty
  • 2022 Ford F-350 Super Duty
  • 2021 Ford F-250 Super Duty
  • 2021 Ford F-350 Super Duty
  • 2020 Ford F-250 Super Duty
  • 2020 Ford F-350 Super Duty
  • 2019 Ford F-250 Super Duty
  • 2019 Ford F-350 Super Duty
  • 2018 Ford F-250 Super Duty
  • 2018 Ford F-350 Super Duty
  • 2017 Ford F-250 Super Duty
  • 2017 Ford F-350 Super Duty

WARNING: Some products may contain chemicals such as DEHP, which can cause cancer, birth defects or other reproductive harm. For more info go to www.p65warnings.ca.gov