73up lower ball joints.

So if my parts manuals are correct. The drum brake and disc brake lower ball joints are the same on the 73 and newer A bodies.
I have a bad left lower on my disc brake car and I have a pair of drum brake assemblies laying here. I’m going to take one apart and see if it fits.

UPDATE. Yes they fit just fine.. confirmed 73 up lower ball joints are the same drum or disc. on a side note... This car also had the big upper ball joints so the upper control arms are the same as the Large bolt pattern disc brake ones.
The doner car was a 73 dart sport //6 auto 4wheel drum brakes 7.25 rear 4" bolt pattern.