2017-2022 Ford F-350/450 Mud Flap Brackets - 21" Dually

Was: $239.00
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Ships by Monday
Part #: GB759895
Our Guarantee
  • Vehicle specific fit - For DUALLY REAR wheel wells
  • Includes (2) custom fit brackets (1 driver/1 pass)
  • Use with 21" wide Gatorback mud flaps
  • No drilling into truck body required
  • Drilling through mud flaps is required for installation

Putting Slots in the flaps

An easy step by step guide to putting slots in the flaps

Rear Dually Bracket and Flaps Installation

Step by Step Instructions

Most Helpful

2017 Ford Super Duty flaps
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.
22 people found this helpful.
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Gatorback mudflaps installation with custom brackets
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.

El Paso, Texas
2017 Ford F-350 Lariat dually
11 people found this helpful.
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2017 Ford F-450 King Ranch Dually
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.
8 people found this helpful.
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Most Recent

Didn't match up was such a pain. To put on
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From: on September 24, 2022
My experience with Sharptruck no-drill mudflaps
I must say, once they are installed, they are great looking.  Be pre-warned, its not a one-man job. It took about 4 hours per side. On my 2023 F450, i had to drill two holes for the two rear mudflaps. The staff and customer service at Sharptruck are top-notch and are great to work with.
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We do. The part number you need is GB755567. These are custom fit for the 21" flaps and 2009-2018 Ram dually wheel well
Verified Answer
Admin answered on 8/29/2017
By: Wayne Miller on 1/21/2020
The brackets will come if you get the full mud flap truck sets, but if you are just buying a rear pair of flaps the brackets will also have to be purchased.
Verified Answer
Admin answered on 1/21/2020
here are the brackets for the 2011 dually, https://www.sharptruck.com/truck-hardware-custom-fit-mounting-brackets-gb755553
Verified Answer
Admin answered on 5/26/2020
View all questions

These brackets are a Ford authorized accessory. That gives you piece of mind that using this will not effect the warranty on the truck. These brackets are designed to be 100% no body drill so the paint and the aluminum body of the truck will stay intact. These brackets work with the 21" wide dually mud flaps, 19" mud flaps will not fit on the 2017 and up Ford F-350 or F-450 Super Duty dually trucks. They are a 100% aluminum construction and include all the hardware and fasteners needed to install your new Ford Super Duty mud flaps. If you have the Lariat protection package with the liners there are two small cuts that need to be made to relieve the pressure on the bracket pressing against the inner liner.

Other helpful topics related to 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.

Brand Gatorback by Truck Hardware
Length 12 inch(es)
Width 4 inch(es)
Height 4 inch(es)
Weight 4 lb(s)
UPC 667511028888

  • 2022 Ford F-350 Super Duty
  • 2022 Ford F-450 Super Duty
  • 2021 Ford F-350 Super Duty
  • 2021 Ford F-450 Super Duty
  • 2020 Ford F-350 Super Duty
  • 2020 Ford F-450 Super Duty
  • 2019 Ford F-350 Super Duty
  • 2019 Ford F-450 Super Duty
  • 2018 Ford F-350 Super Duty
  • 2018 Ford F-450 Super Duty
  • 2017 Ford F-350 Super Duty
  • 2017 Ford F-450 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
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