Truck Hardware Gatorback Black Wrap Denali Dually Mud Flaps

Was: $710.00
$639.00
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Part #: GCN205R-DW
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Our Guarantee
  • Fits GMC Sierra 3500 HD (Dually Rear Wheel(Dually Rear Wheel)
  • Officially licensed Denali logo with black background on a 304 stainless steel plate
  • Includes (2)21" wide dually flaps (1 driver/1 pass) and custom fit rear support brackets and hardware
  • No body drilling required for installation
  • Rear - 13.25" of tire coverage from bottom of the fender to bottom of the flap
  • Heavy duty premium rubber flaps & support brackets
  • Heavy weight flap will not sail
  • Installs over OEM splash guards
  • Limited lifetime warranty

Gatorback Plate Finishes

Here are the different plate finishines

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This Denali with black background logo of Gatorback Offset rear mud flaps are designed for a perfect fit on dually GMC Sierra 3500 HD trucks. The flaps offer 21" of heavy duty rubber and will ensure that they do not sail when you are driving and they do their job. The brackets are made from nylon/fiberglass material that gives them the durability you need. The brackets will not fade or chip and have the holes that line up with the factory fasteners already in them for a quick, simple install. The heavy duty rubber ensures that there will not be any debris that gets passed these flaps. These install inside the wheel well and have a 5/8" offset for extra tire clearance and come with all the hardware needed. An added feature of these flaps is the rubber portion is removable from the bracket via a built in channel to allow the flap to slide in and out for easy removal. This gives you the options for extra ground clearance if needed. Giving you the options for extra ground clearance if needed. When you remove the factory mud guard there will be a small hole in the fender that the fender plugs will cover. That is why the color of your truck is needed. 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.

The Denali logo is officially licensed ensuring it looks perfect and is die stamped into the stainless steel plate with a hand applied vinyl overlay. The stainless plate meaures 17 1/4" x 5". You will appreciate the attention to detail in these flaps. 

Installation is made simple featuring no body drilling to install using factory exisiting screws. Installation takes about 15 mins per flap and you can use 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 mudflaps also feature a lifetime warranty on the rubber portion of the flap. If the flap comes off the truck or is damaged to due to normal wear and tear, let us know and we will send you a replacement piece of rubber at no charge.

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. On the nylon brackets a 1 year warranty is included for manufacturing defects. Damage by abuse, or regular wear and tear is not covered. On the nylon brackets a 1 year warranty is included for manufacturing defects. Damage by abuse, or regular wear and tear is not covered.

Brand Gatorback by Truck Hardware
Length 24 inch(es)
Width 21 inch(es)
Height .5 inch(es)
Weight 24 lb(s)
UPC 667511041573

  • 2024 GMC Sierra 3500 HD
  • 2023 GMC Sierra 3500 HD
  • 2022 GMC Sierra 3500 HD
  • 2021 GMC Sierra 3500 HD
  • 2020 GMC Sierra 3500 HD
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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