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Picture of Truck Hardware Gatorback 4x4 Dually Mud Flaps - Set of 4 - Fits 2017-2022 Ford F-350
Front Flaps
Front bracket
Video
Video
Video
Video
Video
Video
Front flap and bracket install
Dually Flaps
Rear dually bracket
Dually flap and bracket install
Truck Hardware Gatorback 4x4 Dually Mud Flaps - Set of 4 - Fits 2017-2022 Ford F-350 customer photo
Truck Hardware Gatorback 4x4 Dually Mud Flaps - Set of 4 - Fits 2017-2022 Ford F-350 customer photo
Truck Hardware Gatorback 4x4 Dually Mud Flaps - Set of 4 - Fits 2017-2022 Ford F-350 customer photo
Truck Hardware Gatorback 4x4 Dually Mud Flaps - Set of 4 - Fits 2017-2022 Ford F-350 customer photo
Truck Hardware Gatorback 4x4 Dually Mud Flaps - Set of 4 - Fits 2017-2022 Ford F-350 customer photo

Truck Hardware Gatorback 4x4 Dually Mud Flaps - Set of 4 - Fits 2017-2022 Ford F-350

Part #:
GA1223CUT4X4-2~GA21244X4-2~GB759841~GB759895
Sale Price
$808.20
$898.00
Free Shipping
ON ORDER — Expected to Ship in 10-14 Days

Additional details

  • Fits: 2017-2022 Ford F-350 Dual Rear Wheel Trucks
  • Front 12"x23" flaps - Extend 10.5" down from body to bottom of flap
  • Rear 21"x24" flaps - Extend 12.5" down from body to bottom of flap
  • Includes custom fit front & rear mounting brackets
  • Officially Licensed by Ford
  • Limited lifetime warranty

Front 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

Putting slots in the dually flaps

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

Rear Dually Bracket and Flaps Installation

Step by Step Instructions

Super Duty Dually Mud Flap Set

What you get with the set

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

2017 Ford Super Duty flaps
5
The mounting/backing plates went in without a hitch. Then went to install the rubber flaps, watched videos and read directions. No holes in the flaps to match the plates. Very confusing, can't locate holes below with plates installed. They say if you buy them from Ford the flaps are predrilled for the 2017 Super Duty. Payed top dollar for these, should be done right. Not happy with them.
Roger
March 28, 2017
Truck Hardware Gatorback Mud Flap Brackets - 21" Dually - 2017-2022 Ford F-350/F-450
Gatorback mudflaps installation with custom brackets
5
The installation took several hours due to the instructions not being very clear or user friendly.  I consider myself very mechanically inclined and I had trouble interpreting the instructions. I suggest adding some photos along with the instructions showing how the brackets should look installed. The brackets fit OK, but not great. I had to do some amount of improvising to get things to fit. Aside from this, the installation went well and in the end, the mudflaps look great and the custom brackets provide very sturdy support for the heavy mudflaps. I'm very happy with the installation. In spite of the few issues that I had, I recommend these custom brackets to anybody installing rear mudflaps on a 2017 Ford F-350 dually.

Richard
El Paso, Texas
2017 Ford F-350 Lariat dually
Richard
April 22, 2017
Truck Hardware Gatorback Mud Flap Brackets - 21" Dually - 2017-2022 Ford F-350/F-450
2017 Ford F-450 King Ranch Dually
5
Awesome product, mud flaps are only as good as the brackets that hold them in place. These brackets are as good as it gets at any price. Take the time to watch the tutorials, and installation is pretty straight forward. Installed with (21"X24") Ford Blue Oval flaps and the end result is A+
The flaps come pre-drilled for a universal installation, so when using the no drill brackets, you need to use the included templet to make the holes necessary for a custom installation. I used a uni-bit to drill holes, this also gives you some adjust-ability for a perfect fit.
jwssr
April 1, 2017
Truck Hardware Gatorback Mud Flap Brackets - 21" Dually - 2017-2022 Ford F-350/F-450

Most Recent

Gatorback mud flaps& brackets
5
very well made they are har
David
January 11, 2025
Truck Hardware Gatorback Mud Flap Brackets - 12" Front - 2017-2022 Ford F-250/F-350
Excessive labor and ridiculous price.
1
I overpaid for these cuz they looked cool. Then found out after paying $300 for two rubber mud flaps that I then needed another $250 mounting brackets. I had them too long to return so I threw good money after bad and bought the brackets. The assembly instructions are horrible, had to watch you tube videos to assemble and install. Installation in my opinion is pretty extensive for a set of mud flaps. I’m not impressed at all and disgusted I ended up with $600 in rear mudflaps for a pickup truck. Definitely do not recommend.
Jared
October 1, 2024
Truck Hardware Gatorback Mud Flap Brackets - 21" Dually - 2017-2022 Ford F-350/F-450
See all customer reviews

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The 4x4 logo Gatorback Mud Flap set for the F-350 Super Duty dual rear wheel are designed for a perfect fit. These mud flaps will add a level of funtionality to your vehicle while also giving it a unique look. The 12" wide heavy front mud flaps and 21" wide rear rubber mud flaps will protect your vehicle from rocks, mud, gravel, snow and more. You will see your vehicle staying cleaner longer, less junk on your step bars, as well as fewer rock chips on the paint. The Truck Hardware Gatorback series mud flaps are the industries highest quality, heavy duty mud guards! The rugged design and quality finish of these mud flaps make the perfect compliment to your truck. Featuring a 1/2" thick rubber flap, these mud flaps are sure to impress while they protect your investment.

This set includes everything you need to get the flaps installed on your truck. The custom no body drill front and rear mounting brackets are specifically designed for the Super Duty. These aluminum brackets will mount securly to the truck using factory exisiting holes. This will ensure that the warranty on the body of the truck is kept in tact.

Installation is made simple featuring no body drilling using factory exisiting fastereners, mounting locations & custom designed brackets. If there are not any fasteners the flaps will come with the needed hardware and brackets for solid installation. Ford Accesories also test fits the flaps on each model year vehicle ensuring the fitment of the product. Installation can done with tools you have at home. The Gatorbacks install flush to the inside of the wheel well so they work with step bars, power boards or side steps. The stainless plate is 10 1/4" x 5" on the front flaps and 17 1/4"x 5" on the rear flaps.

Other helpful topics related to the gatorback mud flaps

Manufacturer Warranty-

Gatorback mudflaps are backed by a Limited lifetime warranty. This warranty covers rubber replacement (ex- tear offs) for the lifetime of the product to the original owner. It does not cover damage caused by abuse, or regular wear and tear on brackets, plates, or mounting hardware.

BrandGatorback by Truck Hardware
Length21 inch(es)
Width24 inch(es)
Height.5 inch(es)
Weight35 lb(s)

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