The date stamp on my 69 GS 400 reads 8 M 30. Research tells me J is September on a starter motor.
Is that correct? (M is throwing off) and if so, confirming that mine is Dec 30, 1968. My trim tag is 12C.

Also, the alternator dates 9 A 3. I'm told that they were made in batches and that could be correct one
for since the car was not delivered til the 2nd week of Jan 69 but parts pretty much pre-date the build date.

It's a 1 owner car so the dates have me a little puzzled. Any clarification on this would be appreciated.

Thanks -Jeff