Subject: trans input nut questions

1)How tight should the trans input shaft peg-nut be? I can't find any
toque specs or much reference to it other than be sure to tighten and
use the tab washer.
2)Will the tightness affect anything like shaft end-play or seal
integrity?
3)Is one tab knocked into place enough? I spun it round and round and
couldn't find a place where more than one tab lined up.
Thanks
Ray
pax sine tedio
73 Eldo "19"