Will 63 to 66 pedals work in my 67 b'cuda????

This is why I don't mess with pre 70 barracuda's as there isn't much available for them and what is available is very expensive.
Completely irrelevant in this instance. The pedal assy fits 9 model years & fits every Dart/Swinger/Sport/Demon/Valiant/Scamp/Duster/& '67-'69 'cudas. They're not hard to find, & I doubt Brewers is selling E-body pedals any cheaper, there are sets for sale on this site often. Now body parts & trim I hear Ya!