Protect your GMC Sierra 2500 HD or 3500 HD (single rear wheel models) with a mud flap set that’s engineered for serious performance and unmistakable style. The Truck Hardware Gatorback Rubber Mud Flaps are built to stand up to the toughest road and weather conditions while preserving the rugged look and clean lines of your truck. Whether you're a truck enthusiast or someone who simply wants to protect your investment, these flaps provide unmatched durability, clean fitment, and long-lasting protection from debris, grime, and road spray.
This premium four-piece set includes both front and rear mud flaps, each constructed with 12" wide, 1/2" thick rubber for full-width tire coverage. The rubber is heavy-duty and designed to stay flexible in cold weather and resilient under intense heat—perfect for year-round use in any environment. Backed by a lifetime limited warranty, the flaps are paired with custom-fit, 304 stainless steel upper brackets that feature a 2" kickback. These brackets are rust-resistant, precision-formed to match the factory wheel well shape, and install over the OEM protector without requiring removal.
Unlike factory splash guards, Gatorback flaps are specifically engineered to deliver better clearance and a more aggressive stance without compromising protection. By installing over the OEM protectors (and not compatible with factory splash guards), they create a clean, factory-like integration that doesn’t require drilling into your truck’s body. The result? A seamless fit and a tough, custom look that’s just as functional as it is stylish.
You’ll notice the benefits right away—less buildup on your step bars, fewer paint chips, and reduced mess on your trailer or tow vehicle. This set is a great upgrade for both practical truck owners and those who want their rig to stand out while staying protected.
Key Features
- 12" Wide Heavy-Duty Rubber Flaps – Built from 1/2" thick premium rubber for long-lasting protection against mud, rocks, and road debris.
- Custom-Fit 304 Stainless Steel Brackets – Corrosion-resistant with a 2" kickback design; contours perfectly to the truck’s wheel wells.
- Simple, Drill-Free Installation – Uses factory mounting points and includes all necessary hardware for a clean install with no body drilling required.
- Compatible with OEM Protector Only – Designed to install over factory wheel well liners but not compatible with larger OEM splash guards.
Material Quality
The heart of the Gatorback mud flaps lies in the rubber—thick, dense, and flexible even in cold weather, the flaps deliver the kind of durability serious truck owners demand. The polished stainless steel upper brackets not only provide strength and stability but resist rust and corrosion, maintaining their shine and integrity over time.
Installation Details
Installing these flaps is straightforward and doesn’t require body modification. They mount using factory fasteners and holes, and where needed, the included hardware ensures a snug, secure fit. You’ll only need basic hand tools to get the job done. These mud flaps install over the existing OEM protector and are designed to maintain maximum tire clearance while enhancing the protection radius.
Care & Maintenance
To keep your Gatorback mud flaps looking great, we recommend periodically rinsing them to remove road grime. For stainless steel accents, a simple stainless steel cleaner or polish will help retain their luster. Avoid abrasive brushes that could mar the finish of the logo plate or brackets.
Tire Coverage
- Front Coverage: Extends 8.75" below the OEM wheel well protector
- Rear Coverage: Also extends 8.75" below the OEM protector, providing balanced protection front to back.
What’s Included
- (2) Front 12" Wide Gatorback Mud Flaps
- (2) Rear 12" Wide Gatorback Mud Flaps
- Custom-fit stainless steel brackets with 2" kickback
- All required mounting hardware and instructions
Warranty Information
Truck Hardware Gatorback mud flaps are backed by a Limited Lifetime Warranty for the original owner. This warranty covers the rubber flaps (e.g., tear-offs) for the lifetime of the product. It does not include normal wear on mounting plates, brackets, or hardware, nor does it cover misuse or abuse.
Key Terms
- Kickback – A bracket design that offsets the mud flap slightly away from the tire, providing clearance for oversized tires or custom wheel setups..
- 304 Stainless Steel – A high-grade stainless steel known for its corrosion resistance, especially in automotive and marine environments.
- Tire Coverage – Refers to how far the mud flap extends below the wheel well, helping to block road debris from kicking up behind the tire.
For those who want serious protection without sacrificing style, the Truck Hardware Gatorback Rubber Mud Flap Set is a standout solution. Designed specifically for 2020–2026 GMC Sierra 2500 HD and 3500 HD single rear wheel models, these flaps provide superior coverage, a rugged aesthetic, and the build quality to last. Whether you're towing, hauling, or just heading into town, these mud flaps are ready to guard your ride from whatever the road throws your way.