What’s this trim piece?

Isn't this the seat back lock that does not exist in 67?

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67
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I don't mean to be argumentive, you are just contradicting what I have been told for the last 5 years ( not that what I have been told is right :rofl: )

Not at all! No worries!!

Now I get what you are referring to.

You are correct!

No seat Back latch on 67 seat backs. You can plainly see the addition in the 68-69 seat base.