Drum spindle adapter to disc?

Many years ago my good friend and I replaced his 68 Dart front drums to disc. I'm not sure where he bought the brackets. I do know this much, they were aftermarket brackets. We took the drum stuff off and literally bolted the whole kit to his existing spindles. I have searched Dr Diff, right stuff etc and can't find an A body "stock knuckle to disc adapter". Am I not looking in the right spot? I've searched this sight over and over this mornin looking for that info.