I trusted the factory mud guard behind the duellys and an added brush type guard and still did $1000’s in damage to our toad on a 15 minute gravel road drive. Will never do gravel again without unhooking and driving well behind/in front of our unit. All said I’ve gone with the Protect-A-Tow product, basically a “Spider-Man” type mesh that connects via hooks to the outside corners of both vehicles. It’s elastic, bungee cord type design flexes during turns and remains taunt at all times. No wind resistance with enough give to resist punctures. Best of all it connects/disconnects in a couple of minutes and stores like an umbrella.
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