1966-76 Hotchkis Quick Ratio Steering Arms New

So according to the Hotchkis info, these will work on 67-72 A body cars with a small sector steering boxes as long as they have been fitted with 73-76 spindles and steering link. A bodies 73-76 use a large sector steering box, so they won't fit these A bodies unless you change to a small sector steering box.
So technically, these will not work on A body cars without significant modifications.