I have a t990 and I'm having issues with the passenger side exhaust spinning which it has already spun on both t990 we have and scratch up the side of the sleeper we have already had clamps replaced and it is still doing it. Driver side is fine just seeing if anyone has had the same problem and I'm wondering if the dpf is a issue with it because of how hot it gets pipe because that is the only side hooked up. And if so has anyone found a way to fix it because unit only has 30 thousand miles on it and it's starting to drive me nuts.