Recommended Front and Rear Mud Flaps for a 2020 GMC Sierra 3500 Dually
Updated 12/22/2025 | Published 10/05/2024
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Question:
want mud slabs front and rear for 2020 gmc 3500 duramax dually, did not see question about dually.
asked by: Jim
0
Expert Reply:
Hi Jim, for your 2020 GMC Sierra 3500 dually you can use the WeatherTech Mud Flaps # WT42MJ which is designed for the front and rear, and will work with your dually tires.
expert reply by:
Bryce D
0
Product Page this Question was Asked From
WeatherTech Mud Flaps - Easy-Install, No-Drill, Digital Fit - Front and Rear Set
- Mud Flaps
- Custom Fit
- Front and Rear Set
- Single
- No-Drill Install
- Wheel Well Mount
- Custom Width
- Plastic
- WeatherTech
more information >
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Jameson C.
12/22/2025
Hey Jim, how did the WeatherTech mud flaps work out on your GMC 3500 dually? It’d be great to know if the fit around the dual rear tires met your expectations. Your feedback could help others with the same truck setup.