HELP drum to disk break swap lower ball joint same or diffrent

68 dart had 10" drums

im in the middel of a break swap i went to install front lower ball joints and the disk break bolts do not go thru the ball joints drum break ones are smaller and fit thru ball joint but are to small for spindel i was going to reuse my drum ball joints i was told there the same???

im guessing i need disk break ones but i want to check with you guys first
i was told by a few guys there the same when i was getting my parts together im not sure if they are the same just smaller holes i may just need to drill mine out sense there brand new i hate to spend another 200$

thanks