thanks to @vizman for arranging the FBM lock-up for us.
Now @Saulius installed it. Removed the big nut holding the clutch
then installed the lock-up center thing
but how does he tighten it? He has mounted the lock-up on it and tightened it by hand as much as possible, but we guess that's not enough. Should he make a special tool for tightening it?
One more pic of the lock-up in place: