So it sounds like, if you just would have sent that thing on a suicide burnout mission, it would have self clearanced and STFU. Glad to hear you're out of the woods, now go rip on it for us!
Probably, but I’d really rather not gamble with bottom end noises. It’s always easier to suggest “just sending it” when it’s not on your dime.
Regardless, I’m happy to have found the cause and eliminated it. Thanks for your suggestions throughout this, they’ve all been appreciated.