63/66 Valiants

Hello FABO Members
I am new to the early A bodies and was wondering what are the main difference from a 63 thru 66 Valiants. Like body panels, clutch/brake pedal assemblies and so on? What parts will interchange and what won't. Is there a link that explains all this?

I've never seen a link that explains all the interchanges. You mentioned clutch/brake pedal assemblies - all early As (Darts and Valiants/Barracudas) interechange. You can also take a complete front clip (hood, fenders, valance, bumper, etc) from any early A and swap it to any other early A. For example Dodge used the Valiant wagon body and used all the Dart front components to make a Dart wagon. The main differences between year is trim level with Signets and Dart GTs being the high end models. Hope this helps!