Just had my TSB done. Made ZERO difference. They are supposed to call the Ford Tech Hotline today and let me know what they say. I am hoping they replace the exhaust at this point. This will be my 4th time at the dealer with this issue.
So they finally replaced the whole exhaust and my rattle is gone. It only took 5 trips to ford, 1 TSB that didn't work, 4 phone calls to Ford customer service, and 1 year of aggravation listening to my truck exhaust rattle.
I wish I could send them a bill.