are 70-72 Dart Dash pads interchangable

I am pretty certain they do interchange. I have a 70 Dart with a 76 Dash frame for the "square instrument panel" and the frame bolted right in and the pad was kept from the 70.

So I have a 76 frame with a 70 pad so pretty sure the 72 should fit just fine. Just compare yours when you go to look at em.