What are the differences between 65-66 and 67-73 Factory A/C

Thanks for the pictures 65 Dartman

What are you refereeing too when you say:
"I've still got to change the vertical firewall harness connector to horizontal so it will clear the AC box."

I measured my 70 dart fire wall and added the info to the picture.

Looking at my 66 fire wall it looks like the A/C hole location is different may be 5" or 5 1/2".
65 Dartman is there any way you can add some dimensions to your picture? See attached picture

Thanks for clearing some things up.