First time post: tire issues inside pass. rear

That passenger side inner dual is the closest tire to the tailpipe. I'm not saying to move or insualate the tailpipe - you have bigger issues than a patch like that will solve. But I think it's possible the extra heat there would be enough to help that one tire fail soonest. To fire the first warning shot as stated above.

Got Brakes on that heavy trailer? The coach brakes are rated for max Vehicle weight of Coach alone, not the Combined Coach + Trailer weight.