73 340 spool mount k-frame

i never looked.lol ill post back in the am on that
340, I may be interested in k member only. I have a k member taken out of an original 69 dart 340 and it does have the washer welded on front.

Joe, do you happen to know if there was a functional purpose to the washer or was it only for marking purposes? And what years had the washer?