4-count em 4 MC's

Far left, original from car, 1st to right, unidentified-just grabbed off shelf and prepped it.
2nd to right, New NAPA 67 disc drum prepped & painted. 3rd to right, new treasure discovered today, NAPA 71 mopar disc/drum fresh out of box. (probably purchased 5 or 6 years ago) Wondering if I should use the new found treasure?
Still flummoxed-DR:banghead: