Manual steering box swap issues

Just to be clear.... are all manual steering gearbox's small sector shaft? Do I get a 73 and up pitman arm for manual steering or 67-72 pitman arm?

@inertia has the info there, all the manual boxes for these cars were smal sector. The pitman arm needs to match your center link, so if your ‘73 has its original center link you’ll need a ‘73+ pitman