63 Valiant door locks - different?

G'Day. Just wondering whether any one would know if the '63 exterior door locks are different to the other early valiants???? I ask because I have a US '63 and I'd like to change out the locks because they are knocked around. I went to put a set of Aussie locks in but they are different. Then I looked at my '66 Barracuda and they are different to the '63 too???? If they are different do they interchange with another car or year or is it a one year only?
Hoping someone can help with some info
Thanks
Regards
Gary