Bbody4speed
Member
Recently purchased a 63 fury. Previous owner installed 413 with A833 4 speed. It has a very noticeable whining or whirring noise with my foot off the clutch in neutral. It goes away when I disengage the clutch. It has a similar only louder noise in 1st, 2nd and 3rd. It quiets down in 4th. All the research I've done says it should be quiet in all forward gears. I've also heard that some wear issuse in these transmissions can't be fixed by just replacing bearings. Previous owner indicated that he installed new pilot bushing and throwout bearing when he put the 4 speed in it. He also said he put sleeves at seals on input and output shaft due to wear. Seems like there is wear in other places as well. Any thoughts?