I was told by Global West Global West Front end Parts that 70 -73 Mustang Spindles would work. That is what I am going to use for my drop spindles. I never did compare them in person so not 100% sure.
I would say since the suspension parts interchange and the fact that the Mustang guys use Granada and Maverick parts for a swap that they will work. Be nice to verify through Hollander though.
I am putting 68 Fairlane brakes on my 72... We have plenty of donors to choose from. The only thing you have to watch is brake line choice and tie rod end size varies from year to year. Dave