Here are the Ford numbers for 73/up.
Sorry, I don't have the earlier numbers
73/76 - before 8/2/76 --- D1FZ 6223201-B ---- Dual arm window regulator
The Ford parts book only shows one number so I assume it is the same one for both sides
77/up - From 8/2/76 ---- (RH) D7FZ 6223200-A ---- (LH) D7FZ 6223201-A
Single arm window regulator
Edit to add: I'm not able to do a numbers search so I can't tell you what you regulator fits.
Hope this helps.