Distributor O ring/ gasket part #

Lol, no sweat I usually do a search 1st when I have questions. The dist sits down flush with oring removed. So no issues there.
:rofl: Good call. My dumbass didn't even notice the date.

Is the bottom of the tang on the shaft bottoming out in the gear slot? Is the o-ring keeping it from going down? Maybe try it without to see if it drops.