Truck Hardware Gatorback Gunmetal FX4 Dually Mud Flaps - Set of 4 - Fits 2011-2016 Ford F-350

Part #:
GM1223CUTFX4~GM2124FX4~GB755553
Sale Price
$637.20
$708.00
Free Shipping
ON ORDER — Expected to Ship in 10-14 Days

Additional details

  • Fits 2011-2016 Ford F-350 Dually Pickup Trucks
  • Front - 9" tire coverage from fender to bottom of flap
  • Rear - 10.5" tire coverage from fender to bottom of flap
  • Includes 12"x23" cut style front flaps (GM1223CUTFX4)
  • Includes 21"x24" full style rear flaps (GM2124FX4)
  • Includes custom fit rear support brackets (GB755553)
  • Gunmetal Plate
  • Limited lifetime warranty

Gatorback Plate Finishes

Here are the different plate finishines

At a glance

Overall sentiment is strongly positive: buyers consistently describe Gatorback/SharpTruck mud flaps as premium, heavy‑duty, great-looking, and highly effective at stopping rocks/mud/snow from hitting paint, steps, and trailers. The main reservations are the high price and occasional installation/fitment or hardware/packaging issues, which are often mitigated by responsive customer service and strong warranty support.

What Customers Liked

  • Thick, heavy rubber with substantial weight plates; feels “OTR/semi-truck grade,” doesn’t flap at highway speeds, flexible in cold weather, holds up through winters, gravel roads, mud, and years of use; many repeat buyers across multiple trucks.
  • Significantly reduces rock chips, road debris, mud/salt spray on paint, rocker panels, running boards/power steps, cameras, and keeps trailers/5th wheels/RVs cleaner and protected; coverage often better than OEM or plastic splash guards.
  • Looks “sharp,” classy, and truck-specific; logo/plate options (Z71, AT4X, Ford, Ram, Duramax, flags, black/satin/gunmetal/chrome) get compliments and help the truck stand out; finishing caps appreciated.
  • Many report perfect/vehicle-specific fit with factory-hole mounting, adjustable in/out positioning, good clearance with stock tires, and compatibility with certain trims/fender flares when configured correctly.
  • Generally described as straightforward with the right tools; helpful YouTube videos; bracket kits (especially rear/dually) add stability and make alignment easier; ability to install without removing wheels on some vehicles.
  • Frequent praise for fast shipping, responsive support, quick exchanges for wrong parts, replacement parts/plates/flaps shipped rapidly, and hassle-free warranty (including tears/rips or shipping damage).
  • Replaceable plates; removable lower section on some models for off-road clearance; ability to adjust flap stick-out; some like drilling only into plastic liner (not body).

Things to Consider

  • Most common complaint; many call them expensive/overpriced (often $600–$1000+), sometimes compounded by needing separate bracket kits/plates; some say alternatives may be “good enough” for less.
  • Mixed experiences: some installs are quick, others take hours—especially rear/dually, with wheel-well liners, rock rails/steps, or limited access; right-angle drill and/or removing rear wheels often recommended; alignment can be finicky.
  • Paper instructions sometimes vague, lacking steps, inconsistent with videos, or confusing (hardware ID, left/right orientation, templates, washer placement); requests for better labeling, templates, and model-specific videos.
  • Occasional reports of holes not lining up, needing to drill/elongate slots, bend/trim brackets, trim liners/trim pieces, or create homemade brackets; some rubbing with oversized tires/offset wheels; a few cases of poor fit on specific trims/years.
  • Multiple reviewers note drilling is still required (usually into plastic liner or flap), so ‘no-drill’ feels misleading in some kits.
  • Some dislike plastic clips/nut inserts pulling out/stripping, mixed metric/SAE hardware, bolt length issues, flimsy/galvanized or plastic brackets at high price, silver hardware visible (wish black), occasional missing/mismatched hardware or parts.
  • Some flaps/plates arrived scuffed/scratched or boxes damaged; brackets loosening in transit; a few wrong items shipped or missing pieces (spacers/washers/clips), though support often resolves quickly.
  • Some note low ground clearance depending on model/height; concerns about snagging in deep snow, tall grass, or off-road obstacles; some wish flaps were longer/shorter depending on use.
  • Plate finish can streak/stain (e.g., gunmetal), color/gloss differs from expectations, logos not level in a few cases, and some wish flaps came pre-slotted/pre-drilled for easier install.
AI-generated from the text of customer reviews

Most Helpful

FX4 GatorBack Mud Flaps
5
Had body shop install them. Look great, fast service :)
Excellent product..... You get what you pay for.....
5
Well constructed mud flaps with good solid hardware.....  Def. would buy again in future purchases....
2011-2016 f-350 mud flap brackets 21"
5
This is the first time ordering from Sharp Trucks The company is fast there service is outstanding and I'd do b

Most Recent

Gatorback mud flaps
5
With my new used 2017 F150 i was excited to personalize it and what better way but to add Gatorback mud flaps, front and rear. I  did my own installation after watching the Videos sent to me. It was a little time consuming but saved me the cost of installation.  They look amazing so very happy with my choice.
Awesomely simplistic 2016 F350 Dually
5
These made a hard install very easy. I was wondering how I was going to make these mud flaps work ,until I found these brackets on sharptruck.com.
Curving of flap in the picture is due to improper storage of flaps and in no way shape or form related to the brackets.

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Truck Hardware Gatorback Gunmetal FX4 Logo Dually Mud Flaps - Set

The Truck Hardware Gatorback Gunmetal FX4 Logo Dually Mud Flap Set offers unparalleled protection, distinctive styling, and reliable functionality, tailor-made for 2011-2016 Ford F-350 Dually Pickup Trucks. These mud flaps are designed to handle tough road conditions while providing your truck with a bold and unique look. Featuring the iconic FX4 logo on a gunmetal stainless steel plate, this set adds a premium touch to your truck. With 12-inch wide heavy-duty front rubber flaps and 21-inch wide rear rubber flaps, the mud flaps deliver 9 inches of tire coverage for the front and 10.5 inches for the rear, ensuring comprehensive protection to keep your truck cleaner and free from rock chips.

Constructed from 1/2" thick virgin rubber, these mud flaps are made to endure the harshest environments, providing both resilience and flexibility. The officially licensed FX4 logo is die-stamped onto a gunmetal-finished 304 stainless steel plate, with logo plates measuring 10 1/4" x 5" on the front flaps and 17 1/4" x 5" on the rear flaps, adding a sleek and rugged aesthetic to your vehicle.

Key Features

  • Heavy-Duty Rubber Construction: Made from 1/2" thick virgin rubber, ensuring exceptional durability and resistance to cracking, warping, or other damage caused by harsh road conditions.
  • Optimal Tire Coverage: The front mud flaps offer 9 inches of tire coverage, while the rear flaps provide 10.5 inches, giving your truck maximum defense against road debris and spray.
  • Custom Fit Rear Support Brackets: Includes custom-fit rear support brackets (GB755553) for enhanced stability, keeping the mud flaps securely in place during all driving conditions.
  • Gunmetal FX4 Logo: The officially licensed FX4 logo is die-stamped onto a 304 stainless steel plate with a gunmetal finish, adding a modern and stylish touch to your truck.

Installation

Front Flap Installation: The front mud flaps mount directly to the lip of the wheel well using self-tapping screws and existing factory fasteners where applicable. Installation is straightforward, requiring only basic tools. Allow for at least 1/2" of clearance between the tire and the wheel well to accommodate the flap’s thickness. The front flaps install flush with the wheel well for seamless integration with side accessories such as step bars or power boards.

Rear Flap Installation: The rear flaps are installed using custom-fit rear support brackets and self-tapping screws to keep them secure against the wheel well. This method of installation ensures stability and prevents the flaps from flapping into the tires, even in challenging driving conditions.

Tire Coverage

  • Front Mud Flaps: Provide 9 inches of tire coverage, effectively minimizing spray and shielding your truck’s body from road debris.
  • Rear Mud Flaps: Offer 10.5 inches of tire coverage, delivering added protection for the dual rear wheels and keeping your vehicle cleaner.

What’s Included

  • (2) Front Mud Flaps - 12" x 23" Cut Style (GM1223CUTFX4)
  • (2) Rear Mud Flaps - 21" x 24" Full Style (GM2124FX4)
  • Custom Rear Support Brackets (GB755553)
  • All necessary installation hardware

Care & Maintenance

To maintain your Gatorback Gunmetal FX4 Logo Dually Mud Flaps in top condition:

  • Rubber Flaps: Clean routinely with mild soap and water to remove accumulated dirt, grime, and salt. Avoid using harsh chemicals that may damage the rubber. A rubber protectant can help maintain flexibility and prevent cracking.
  • Stainless Steel Plates: Clean the logo plates with a stainless steel cleaner to keep them shiny and free of debris. Avoid abrasive cleaners to prevent scratches. The 304 stainless steel is corrosion-resistant, ideal for tough environments.
  • Mounting Hardware: Regularly check the mounting hardware to ensure it remains secure, especially after off-road use or harsh weather exposure.

Manufacturer Warranty

Gatorback Mud Flaps come with a Limited Lifetime Warranty. This warranty covers rubber replacement (e.g., tear-offs) for the original owner. It does not cover damage caused by misuse, abuse, or normal wear and tear on brackets, plates, or mounting hardware.

Terms

  • Virgin Rubber: Rubber that has not been recycled, offering superior durability and resistance compared to reclaimed rubber.
  • 304 Stainless Steel: A high-quality stainless steel known for its resistance to corrosion, commonly used in automotive applications.
  • Die-Stamped: A process where the logo is pressed into the metal, resulting in a durable and long-lasting design.

The Truck Hardware Gatorback Gunmetal FX4 Logo Dually Mud Flaps provide heavy-duty protection with a distinctive design, ideal for Ford F-350 Dually owners who want to protect their truck from road debris while making a statement. With robust construction, custom-fit brackets, and an easy installation process, these mud flaps ensure your truck looks great and stays protected in any driving conditions.

BrandGatorback by Truck Hardware
Length24 inch(es)
Width21 inch(es)
Height.5 inch(es)
Weight35 lb(s)

  • 2016 Ford F-350 Super Duty
  • 2015 Ford F-350 Super Duty
  • 2014 Ford F-350 Super Duty
  • 2013 Ford F-350 Super Duty
  • 2012 Ford F-350 Super Duty
  • 2011 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