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.