Alan,
Just a Wild Guess
, but if you use the pictured casting date code "B 02 5", my thinking would indicate an actual date of February 02 1975 (maybe or could be 1985).
I tried searching for more info using the pictured casting number, but found nothing directly confirming what it is.
Just lots of ads for "dropped" spindles for sale.
Maybe take the spindle (and measurements of the drag link tie rod opening) to your local flaps and do a counter check for fit of your piece with '75 and '85 listed parts. Should be possible to find a match by elimination.
Let us know what you figure out.
Happy New Year
