Measuring crank to bell housing alignment A904

IMO, alignment with a bigfat convertor in there , would have to be off pretty significantly, to be a problem; unlike with a manual trans that has a pilot bushing in the back of the crank. When that business goes out of alignment you may get stiction of the disc on the splines which requires more than the usual clutch-departure to find neutral when stopped. and I suppose the hub of the disc could suffer; and I suppose the 4th gear brass might have a lil difficulty;
but honestly, the misalignment would have to be severe. And if really severe, I suppose those lil rollers in the back of the Input gear could do a number on the nose of the mainshaft.
But I mean ........................ I've only indicated a half a dozen Bellhousings, and only the one on my 367 needed anything and that's because the machine-shop that "align-honed" my block did a wicked number on it, and wouldn't come clean on the mess they made.
I did a 904 once, on a different engine, but it was within spec.