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

Part #:
GB1223CUTBK~GB1223BK~GB756802
Sale Price
$234.00
$260.00
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

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 .
Mud flaps
5
Did not fit as expected.  Did not cover tire
Nice
5
Heavy duty, worked with the fender flares, a tad bit guessing on install with the fender flares.

Most Recent

front mud flaps
5
These look awsome i had to do a little work to the truck to get these to fit cause including a homemade bracket because i have larger tires and wheel spacers on my truck
Mudflaps
3
Splash guards are fine, but they did not include brackets to fit the front of the pickup I was advised they would.

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Truck Hardware Gatorback Rubber Mud Flaps - Set

Protect your truck with the Truck Hardware Gatorback Rubber Mud Flap Set. Designed to fit 2014-2018 GMC Sierra 1500, 2019 GMC Sierra 1500 Limited, and 2015-2019 GMC Sierra 2500 HD and 3500 HD (Single Rear Wheel), these mud flaps provide superior protection while maintaining a sleek, rugged look. Featuring 12" wide heavy-duty rubber construction, these mud flaps are built to keep your truck cleaner for longer while preventing road debris from causing damage to your paint or bodywork.

Constructed from 1/2" thick virgin rubber, these mud flaps offer unmatched durability, flexibility, and resistance to cracking, fading, and warping. Virgin rubber provides the toughness required to withstand harsh weather conditions, rocks, mud, and other road debris. The custom-fit design ensures a perfect fit, with front mud flaps providing 5" of tire coverage and rear mud flaps offering 7.5" of coverage, keeping your truck and those around you protected.

The Gatorback series from Truck Hardware is synonymous with quality craftsmanship and robust protection. Each mud flap in this set includes a sleek, understated design, perfect for those who appreciate a clean, classic look. With included custom rear support brackets (GB756802), these mud flaps remain securely fastened, providing reliable performance even in the most demanding conditions.

Key Features

  • Heavy-Duty Virgin Rubber Construction: Made from 1/2" thick virgin rubber, these mud flaps are highly durable, offering superior resistance to cracking, fading, and other forms of wear. The high-quality rubber material keeps the flaps steady, even at highway speeds.
  • Full Tire Coverage: The front flaps provide 5" of tire coverage, while the rear flaps offer 7.5", ensuring your truck stays protected from dirt, gravel, mud, and other road debris.
  • Custom-Fit Rear Support Brackets: Custom rear support brackets (GB756802) are included to ensure added stability, preventing unwanted movement and maintaining a secure fit for the mud flaps.
  • Simple, Sleek Design: With a minimalistic look, these mud flaps add a clean, rugged aesthetic to your truck, perfect for anyone looking for practical protection without excessive branding.

Installation

Front Flap Installation: The front mud flaps are designed to fasten directly to the lip of the wheel well using self-tapping screws, with existing factory fasteners also usable if available. The installation is straightforward and requires only basic tools. Be sure to leave at least 1/2" of clearance between the tire and wheel well to accommodate the flap thickness. These flaps install flush with the wheel well, ensuring compatibility with accessories like step bars, power boards, or side steps.

Rear Flap Installation: The rear mud flaps are secured using the included custom-fit rear support brackets and self-tapping screws. These brackets provide added stability, minimizing movement and preventing the flaps from contacting the tires, even in challenging driving conditions.

What's Included

  • (2) Front Mud Flaps - 12" x 23" Cut Style (GB1223CUTBK)
  • (2) Rear Mud Flaps - 12" x 23" Full Style (GB1223BK)
  • Custom Rear Support Brackets (GB756802)
  • Stainless Steel Self-Tapping Mounting Screws

Care & Maintenance

To keep your Gatorback Rubber Mud Flaps looking their best:

  • Rubber Flaps: Clean regularly with mild soap and water to remove dirt, grime, and road salt.
  • Periodically inspect all mounting hardware to ensure it remains secure, especially after off-road use or exposure to harsh conditions.

Manufacturer Warranty

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

Terms

  • Virgin Rubber: Rubber that has not been recycled or reprocessed, providing superior strength, flexibility, and resistance to environmental damage compared to recycled alternatives.
  • Self-Tapping Screws: Screws that create their own hole as they are driven into materials, making installation easier and more secure.
  • UV Resistant: Treated rubber to resist damage from ultraviolet (UV) light, preventing cracking or fading over time.

The Truck Hardware Gatorback Rubber Mud Flaps are the perfect combination of rugged durability, practical protection, and sleek style. Crafted with high-quality virgin rubber and custom-fit support brackets, these mud flaps are designed to protect your truck and enhance its look. Trust Gatorback for exceptional quality, fit, and performance, ensuring your truck stays protected and looking great wherever your adventures take you.

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