Do you need protection from rocks and road debris and are wondering, "what is the best mud flaps for my dually truck"? Nothing available on the market today stands up to the quality and craftsmanship you get from the heavy duty Gatorback series mud guards. These rubber truck mud flaps are the toughest protection on the market. Rocks, snow, sand and anything that the road can throw at you stand no chance. These rubber flaps also add the perfect finishing touch to your Chevy Silverado 3500 dually truck.