Dbaldwin682

I just ordered a Tiffin Allegro RED 38QBA that will arrive the first week in March. It wasn't offered from the factory but I asked if I could install a rock guard on the rear to prevent damage to my toad. I was told that they don't mount them at the factory because the exhaust will cause the "rubber to melt". Has anyone installed a rock guard on this type of coach and have they had a problem?