Do your mud flaps cover the entire rear of the dual tires?

[Duner]

When you put on larger mud flaps behind your dually's ......

You have to be careful when you back up so you don't push the flap against the tire. The rear tires will grab the the flap and run over it, ripping it away from the mounting bolts. Backing into a low curb, backing into a small depression.

I've torn mine off twice. Fortunately, they can be screwed back on, even though the holes become slots where they ripped open.

I bought a full size truck mud flap for just $7 or $8 at a Freightliner shop. Cut them exactly in half, and mount the nice chrome plate at the bottom.

[AFChap]

UltraGuard solid rubber flaps all the way across the rear of the Motorhome will solve your problem for good.

...more likely create MORE of a problem sweeping stones up off the roadway... guy on our Alaska caravan this summer had a new Class C and had a full width flap put on it in addition to the standard flaps behind the duals. When doing the pre-trip inspection I told him it was too long and would cause him problems. He said he had already had it shortened because after installation it was dragging the ground. He was towing a Honda Civic. After every gravel/construction section his wipers were covered with stones, and there were even stones on the upper trunk lip. After the 70 day caravan, the windshield looked like it had been sand-blasted with very large grit sand ...no big cracks, just solid pits over the entire glass. I kind of trust my full width flap because it rides 6-8" above the ground, but I still removed it for the caravan trip.

[PatStab]

I have a full width flap on my Eagle, does a great job. I haven't noticed any damage to the toad.

[SuperGewl]

Mine covers both duals, however I had to make mine and install them myself. They are 23" X36" with a 8" extension, I will post some pictures when I get them downloaded from the camera.

[DuraFlap Mud Flaps]

The rear mud flap needs to be kept at least 4" off the ground to keep it from hitting the ground, or creating a wind vortex and throwing loose rocks at your tow vehicle.