Truck Hardware Gatorback Z71 Mud Flaps - Set of 4 - Fits 2014-2018 GMC Sierra 1500 & 2015-2019 2500/3500HD

Part #:
GB1223CUTZ71-2~GB1223Z71-2~GB756802
Sale Price
$356.40
$396.00
Free Shipping
In Stock Ships by Monday

Additional details

    ⚠️Fits single rear wheel trucks
  • Includes (4) 12" wide mud flaps (2 driver/2 pass)
  • Drilling required for installation
  • Front tire coverage - 9" below fender
  • Rear tire coverage - 7.5" below fender
  • Lifetime limited warranty

GMC 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

Best mud flaps ever bought .
5
Best mud flaps ever bought , easy to put on n look sharp. But best part ever they will protect your vehicle from mud n rocks . I have these on my other pickup for 4 years n never ripped them off in snow , shush, mud n no screws to rust away. They are installed with carbon bolts that Don’t rust n hold in place . I had buy them again for my new Chevy n got them on my Ford also . First picture Chevy , 2 ND picture on my Ford 4 yrs later. No rust on bolts n look sharp like the day I put them on .
GMC Trucks
5
Really like the color and lettering on bright stainless steal . They are heavy duty to help keep rocks down from chipping the paint .
2015 chev
5
they look very nice on my truck. Easy to install great way to protect your truck from rock chips.

Most Recent

Mud flaps
5
Very nice quality....look great
Easy to install brackets!
5
Instructions were clear, concise and easy to follow. The brackets provide an easy way to hang the mud flaps from existing OEM fender liner mount screw while aligning and securing the rest of the mount screws. Thanks for the assist!

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Truck Hardware Gatorback "Z71" Logo Mud Flaps - Set

Enhance the look and protection of your GMC Sierra with the premium Truck Hardware Gatorback Z71 Logo Mud Flap Set. These mud flaps are engineered to provide a seamless fit and superior protection for 2014-2018 GMC Sierra 1500, 2019 GMC Sierra 1500 Limited, and 2015-2019 GMC Sierra 2500 HD/3500 HD (Single Rear Wheel). Whether you're on the highway or taking your truck off-road, these mud flaps are designed to handle the toughest conditions while preserving the appearance of your vehicle.

Constructed from 1/2" thick, heavy-duty virgin rubber, these 12" wide mud flaps deliver exceptional durability and complete tire coverage. Virgin rubber is known for its superior strength, flexibility, and resistance to wear compared to recycled alternatives, making these mud flaps highly resilient against cracking, fading, and warping. They help shield your truck's body from rocks, mud, gravel, and road debris, ensuring your vehicle stays cleaner and is less prone to damage from harsh elements. The Z71 Logo Mud Flaps add a rugged, distinctive look to your truck with the iconic, officially licensed GM Z71 logo, embossed on a stainless steel plate with a black finish for a sleek and bold aesthetic.

The Truck Hardware Gatorback series is renowned for its top-tier quality, offering the ultimate heavy-duty mud guards that combine style, performance, and protection. These mud flaps have been carefully designed for a perfect fit, incorporating premium-grade materials that ensure long-lasting performance and resistance to wear. The set includes both front and rear mud flaps, each with a customized fit that aligns precisely with the factory fasteners, providing an easy installation process.

The front flaps provide 5" of tire coverage from the bottom of the fender to the bottom of the flap, while the rear flaps provide 7.5" of tire coverage. This extensive coverage helps prevent chips, scratches, and damage from dirt, rocks, and road debris, giving your GMC Sierra a pristine look even in tough driving conditions. With a weight that prevents them from sailing, these flaps stay firmly in place for reliable protection, no matter the terrain.

Key Features

  • Heavy-Duty Virgin Rubber Construction: Crafted from 1/2" thick premium virgin rubber for unbeatable durability, these mud flaps provide long-lasting protection and are resistant to cracking, fading, and warping. Virgin rubber offers superior performance, ensuring that your mud flaps maintain their integrity over time.
  • Custom-Fit Design: Engineered specifically for 2014-2018 GMC Sierra 1500, 2019 GMC Sierra 1500 Limited, and 2015-2019 GMC Sierra 2500 HD/3500 HD models. The set includes custom-fit rear support brackets (GB756802) to ensure stability during tough driving conditions.
  • Officially Licensed Z71 Logo: The stainless steel plates feature a high-quality, die-stamped GM Z71 logo, finished with a hand-applied vinyl overlay, ensuring a sleek and professional look.
  • Complete Tire Coverage: The front mud flaps offer 5" of tire coverage, while the rear provides 7.5", offering extensive protection from road debris and environmental damage.

Installation

Front Flap Installation: The front mud flaps are designed to attach directly to the lip of the wheel well using self-tapping screws, with the option to use existing factory fasteners if available. The installation process is straightforward and requires only basic tools, ensuring a quick and hassle-free experience. Make sure to allow at least 1/2" of clearance between the tires and the wheel well to accommodate the flap's thickness. The front flaps install flush with the wheel well, allowing them to integrate seamlessly with other accessories such as step bars, power boards, or side steps.

Rear Flap Installation: The rear mud flaps are secured with custom-fit rear support brackets and self-tapping screws, which help hold the flaps tightly against the wheel well, minimizing movement and preventing them from flapping into the tires. This secure installation helps ensure the longevity of the mud flaps, even in harsh driving environments.

What's Included

  • (2) Front Mud Flaps - 12" x 23" (GB1223CUTZ71-2)
  • (2) Rear Mud Flaps - 12" x 23" (GB1223Z71-2)
  • Custom Rear Support Brackets (GB756802)
  • Stainless Steel Self-Tapping Mounting Screws

Care & Maintenance

To maintain the performance and appearance of your Gatorback Mud Flaps:

  • Rubber Flaps: Clean periodically with mild soap and water to remove dirt, grime, and road salt.
  • Stainless Steel Plates: Wipe down with a non-abrasive cleaner to maintain the polished finish.
  • Inspect mounting hardware regularly to ensure it remains secure, especially after off-road use or exposure to harsh weather conditions.

Manufacturer Warranty

Gatorback mud flaps are backed by a limited lifetime warranty. This warranty covers rubber replacement (e.g., tear-offs) for the lifetime of the product for the original owner. It does not cover damage caused by abuse or normal wear and tear on brackets, plates, or mounting hardware.

Terms to Know

  • Virgin Rubber: Rubber that has not been recycled or reprocessed, offering superior durability, flexibility, and resistance to wear compared to recycled rubber.
  • Self-Tapping Screws: Screws that are designed to drill their own hole as they are driven into materials such as metal or plastic, simplifying the installation process.
  • Die-Stamped: A process where the logo is stamped into the metal plate, ensuring a precise, consistent, and high-quality finish.
  • UV-Resistant: The rubber material is treated to resist damage from ultraviolet (UV) light, preventing cracking or fading over time.

The Truck Hardware Gatorback Z71 Logo Mud Flaps are the perfect blend of rugged durability, premium styling, and ultimate protection for your GMC Sierra. With high-quality virgin rubber construction, iconic Z71 branding, and exceptional coverage, these mud flaps enhance both the appearance and performance of your truck, ensuring it's ready for any challenge. Trust Gatorback for mud flaps that deliver unmatched quality and protection, and elevate your ride to a whole new level.

BrandGatorback by Truck Hardware
Length23 inch(es)
Width12 inch(es)
Height.5 inch(es)
Weight23 lb(s)

  • 2019 GMC Sierra 2500 HD
  • 2019 GMC Sierra 3500 HD
  • 2018 GMC Sierra 1500
  • 2018 GMC Sierra 2500 HD
  • 2018 GMC Sierra 3500 HD
  • 2017 GMC Sierra 1500
  • 2017 GMC Sierra 2500 HD
  • 2017 GMC Sierra 3500 HD
  • 2016 GMC Sierra 1500
  • 2016 GMC Sierra 2500 HD
  • 2016 GMC Sierra 3500 HD
  • 2015 GMC Sierra 1500
  • 2015 GMC Sierra 2500 HD
  • 2015 GMC Sierra 3500 HD
  • 2014 GMC Sierra 1500

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