4 speed vs 5 speed info?

[d240zx2]

If you're bothered by the 3rd gear whine, don't let it bother you anymore in the sense of impending failure. Mine developed that whine 35 years back and until I plugged in the 5 speed two years ago, it was still whining but making "car go fast." Can't say the whine is endemic to the transmission, but can say that you're not alone....