68-73 disc spindles have the same geometry. 1970 they changed tie rod end taper, and beefed-up the spindle. Otherwise they are functionally the same. Likewise, '74-'77 Maverick and '75-'80 Monarch/Granada are usable (with their own calipers). Lincoln Versailles is similar but requires an adapter sleeve to retrofit. Lots of other choices and sources. Have fun hunting.
:tup:
David