Evidently Thor didn't tighten the bolt/nut holding the driver's side rear (front of tire) mudflap very securely. At some point the bolt fell out and allowed the flap to be sucked back in contact with the dually tires. This flap protects the propane bay from debris thrown up by the rear tires.
It didn't harm the tire, but the polymer mudflap didn't fare too well...
I found a suitable replacement on Amazon (2 for $20) which was actually a little thicker. However, the replacement was too wide... but scoring and snapping it with a utility knife was easy... just like a piece of gypsum board!
Of course the holes didn't match... that was as simple as matching up from the holes on the old one and drilling new ones.
A trip to the hardware to get new self-tapping screws, fender washers, lock washers, bolts and nuts. The original install didn't have the fender washers or lock washers... but I thought that was a good idea.
Actually there are only two self-tapping screws holding the top corners... I show 3 in the pic.
Drill the holes...
Then install using a 3/8" socket & adjustable wrench to tighten.
Thor Forums
