Learning about the causes of various failures becomes valuable knowledge.
Remembering symptoms and sounds is a shortcut to solving the problem.
So there’s this strange noise coming from around the engine that I’ve never heard before.
The way it rides feels odd too.
My guess is either the primary reduction or the countershaft bearing.
Bingo! The countershaft bearing is loose and rattling.
Since you can’t replace it without splitting the case,
Sayonara!
