debris inside the shaft will cause the bearings to not get oiled, and turn blue.
Every wonder where all the little pieces of plastic from a bad input shaft bearing go????
I always ask for pictures on the problem tranny........what can I say, I like tranny porn.
It's just I'll see little issues others don't......
Blueing is from heat and lack of oil. Usually 4th and 5th gear on the mainshaft.
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