Truck Hardware Gatorback Rubber Dually Mud Flaps - Rear Pair - Fits 2020-2026 Silverado/Sierra 3500HD

Part #:
GCR204R-BK
Sale Price
$383.40
$426.00
Free Shipping
In Stock Ships by Monday

Additional details

    ⚠️Does NOT fit with rear dually wheel well liners
  • Includes (2) 21" wide dually flaps (1 driver/1 pass) & brackets
  • Custom fit - No body drilling required for installation
  • Rear - 13.25" tire coverage from fender to bottom of flap
  • Lifetime limited warranty

Gatorback Plate Finishes

Here are the different plate finishes

Rear Flap Installation Video

Step By Step Install

GCR202 and GCR203 Flap Differences

Product Overview

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
Silverado Dually Gatorback Mud Flaps
5
5 years ago, I purchased a new 2019 3500HD. After much research, I bought the Gatorback Mud Flaps. They’re not cheap, but they are by far the best. After 5 years of absolutely no issues, I traded my 2019 with 140,000 miles, for a new 2024 Silverado Dually. Guess what the first accessory I purchased?  That’s right, Gatorback Mudflaps.
Good Mud Flaps
5
Good looking mud flaps

No questions have been asked about this product yet. Have a question? Ask it below!

Protect your 2020-2026 Chevrolet Silverado 3500 HD or GMC Sierra 3500 HD dually with the Truck Hardware Gatorback Rubber Dually Mud Flaps. This rear set of mud flaps provides rugged protection for your truck's dual rear wheels, combining practicality with a sleek and understated rubber design. Made from high-quality virgin rubber, these mud flaps offer unmatched durability and flexibility, perfectly suited for tough road conditions while maintaining a clean and polished look.

Constructed from heavy-duty 1/2" thick virgin rubber, these mud flaps are designed to withstand the harshest environments. They effectively shield your truck from rocks, mud, gravel, and other road debris, keeping your vehicle cleaner and reducing paint damage. The Gatorback Rubber Mud Flaps offer reliable protection with a minimalist aesthetic, making them an ideal choice for Silverado and Sierra owners who value both practicality and performance.

Rear Mud Flaps

Specifically designed for dually Chevrolet Silverado and GMC Sierra 3500 HD models, these rear mud flaps provide outstanding coverage for your truck's dual rear wheels. Measuring 21" in width, they offer comprehensive protection from road debris, mud, and grime. The rugged rubber construction ensures long-lasting performance while delivering a classic, understated look that complements the design of your truck.

The virgin rubber construction ensures exceptional resilience, allowing these mud flaps to withstand challenging road conditions without compromising performance. The wide design helps minimize "sail" at high speeds, keeping the mud flaps securely in place for optimal protection. Installation is straightforward and requires no body drilling—each rear flap comes with custom-fit brackets and all necessary hardware for a secure and seamless fit.

Heavy-Duty Design for Lasting Performance

The Gatorback Rubber Dually Mud Flaps are engineered for Silverado and Sierra owners who need durable protection that stands up to rugged use. The virgin rubber construction provides superior durability, withstanding extreme weather conditions and resisting cracking or tearing. These mud flaps are designed to protect your truck from the elements while maintaining a sleek and unobtrusive appearance, making them a valuable addition for those who value quality and reliability.

Effortless Installation

Installing these mud flaps is simple and hassle-free. The rear set utilizes factory screws and existing mounting points, eliminating the need for drilling. The custom-fit design ensures compatibility with your truck's existing features, and each flap includes custom-fit brackets and all necessary hardware for a secure and straightforward installation.

With installation taking approximately 15 minutes per flap, you can easily fit them at home using standard tools. Once installed, these mud flaps integrate seamlessly with your truck’s design, providing both superior protection and a classic look.

Key Features

  • Durable Virgin Rubber Construction: Made from 1/2" thick virgin rubber, offering unmatched durability and flexibility to withstand tough road conditions and reduce wear and tear on your vehicle.
  • Enhanced Tire Coverage: Provides 21" of width for increased tire coverage and maximum protection against road debris, ideal for dual rear wheel configurations.
  • Effortless, No-Drill Installation: Uses factory screws and includes custom-fit brackets for a secure and straightforward installation, delivering a premium, hassle-free experience.
  • Minimalist Aesthetic: Features a sleek, understated rubber design that complements the rugged look of your truck while providing premium protection.

Terms to Know

  • OEM (Original Equipment Manufacturer): Refers to parts made by the vehicle manufacturer. These mud flaps are designed to fit over the original mud protectors provided by Chevrolet and GMC.
  • Sail: When mud flaps move excessively due to wind or speed, potentially reducing their effectiveness. The weight and design of these flaps minimize sail.
  • Virgin Rubber: Rubber that has not been recycled or reclaimed, offering superior durability and flexibility compared to recycled rubber.

Tire Coverage:

  • Rear Tire Coverage: 13.25" from the bottom of the fender to the bottom of the flap.

Warranty

The Gatorback Rubber Mud Flaps are backed by a limited lifetime warranty. This warranty covers the rubber portion against tear-offs for the lifetime of the product for the original owner. The warranty provides peace of mind, offering a replacement if the rubber flaps come off due to normal wear and tear. However, it does not cover damage resulting from abuse or regular wear on brackets, plates, or mounting hardware.

Product Care & Maintenance

  • Virgin Rubber: Clean the rubber portion using a mild soap and water solution. Avoid harsh chemicals or petroleum-based cleaners, as these can degrade the rubber over time. Rinse thoroughly and allow the mud flaps to air dry for the best results. Regular cleaning helps maintain the rubber’s flexibility and appearance, ensuring long-lasting performance.

For Chevrolet Silverado and GMC Sierra owners seeking reliable protection with a minimalist, practical design, the Truck Hardware Gatorback Rubber Dually Mud Flaps are an ideal choice. With enhanced coverage, effortless installation, and a rugged aesthetic, these rear mud flaps are designed to protect your truck from road debris while maintaining a sleek and understated appearance. Choose Gatorback Rubber Mud Flaps for lasting performance and dependable style.

 

Other helpful topics related to the gatorback mud flaps

Brand Gatorback by Truck Hardware
Length 24 inch(es)
Width 21 inch(es)
Height .5 inch(es)
Weight 24 lb(s)
UPC 667511041672

  • 2026 Chevrolet Silverado 3500 HD
  • 2025 Chevrolet Silverado 3500 HD
  • 2024 Chevrolet Silverado 3500 HD
  • 2023 Chevrolet Silverado 3500 HD
  • 2022 Chevrolet Silverado 3500 HD
  • 2021 Chevrolet Silverado 3500 HD
  • 2020 Chevrolet Silverado 3500 HD
  • 2026 GMC Sierra 3500 HD
  • 2025 GMC Sierra 3500 HD
  • 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