I can't quite tell from that pic, but it looks like that might be a '73 up? The '73 ends are "straight" between the holes, the '67-'72 one has a "twist" to it.
This pic is of a '73-up one (straight ends).
If Roy happens to see this thread, yes, I know I just bought his '73 one... that is for a different project. I need the '67-'72 one for my '68 QA1 setup.