Thanks for replying Rick. Respectfully, can you explain how the font changed from when the transmission got stamped to when the engine got stamped?
From my understanding, they get stamped at the same time. In addition, the spacing is not the same, you'd at least expect similar spacing if the '1' die was replaced with another looking more like a capial 'I' with the bars across the top and bottom.
In addition, what is your opinion on the date code of the block being Dec 69 and the SPD in July. Historically, aren't the build date and the engine dates closer together? Typically a month or so?

Thank you