1978 Apsen disc brake spindles with caliper cores and lower ball joints $200

38 Dodge said
Will this set up fit on an early A? What all else would I need to convert my caar to disc

73-76 A body BBJ uppers or Dr. Diff Sleeves

73-76 A body lower ball joints.

That's the stuff to bolt them on. You'll likely need a new master and prop valve (can come off the aspen).