65 Mustang v-8 front end parts will swap right on, you'll need the Mustang steering assembly, including pitman arm, idler arm, inner and outer tie rod ends. EXCEPT for the Mustang center link, which is too long (STangs were just a tick wider than early Falcons) They should hang right on your 64 centerlink, provided its a V-8 part.

Good Luck, Roadwarrior68