Auto Tranny Input Shaft Nut Replacement

[TwoFistedJustice]

The automatic transmission input shaft nut, part no. 21001680 has been discontinued for some time.

I'll probably end up reusing the old one with some red threadlocker.

Has anyone found a suitable replacement for it?

[S.Bretz]

The automatic transmission input shaft nut, part no. 21001680 has been discontinued for some time.

I'll probably end up reusing the old one with some red threadlocker.

Has anyone found a suitable replacement for it?

When the nut finely loosened up on the wife's old sc2 I did the same thing.I removed the nut, cleaned the input shaft and the nut with brake clean really well then let both dry and applied red loctite. I then hammered it back on with the old ingrasoll 231 impact set to medium on 150psi shop air w/ a 1/2 to 3/8 adapter going to a short craftsman thin-wall 12 point socket. Then put a couple more drips of red loctite over the thread-to-thread area on the nut/shaft and then slapped it back togther. I held for at least 8yrs before we gave the car away.