Duster ball joint questions.

QUOTE The uppers are the small ones. Does anyone know the part #? I have manual disc brakes with the single piston caliper.

Not possible unless someone used an adapter plate for the calipers.If you have a single piston caliper it's from a 73 and newer a body and you should have the larger upper ball joints.For the lower ball joints just look them up for a 73+ with a V8 motor 318-340-360 all small blocks had disc brakes from 73 on