The '67-'72 instrument panels have the same harness connector, but there's a difference in pin-out, depending on whether the truck came with idiot lights or gauges. However, it was brought to my attention in this thread that the '71-'72 panels' harness connector is completely different for idiot light panels vs. gauge panels, in addition to the obvious difference in printed circuit boards. 'theogre5150' provided some excellent comparison pictures of the two styles, which has now been added to the above-linked ID page.
Thanks Eric!
![Thumbs up :thup:](./images/smilies/icon_thumright.gif)
Here's the comparison graphic now posted on the ID page. (Click to enlarge.)
![Image](http://www.fordification.com/images/instpanel-comp_71-72_small.jpg)