Lower control arm question

I will have to look and see where the calipers hang,the cars vin showed it to be a 72 but has lg bolt pattern,I realise the ball joints unbolt from the spindle but the taper stud goes through the lca so do I use ball joint for the year lca's that I use.I found a set from 67-69 Barracuda sway bar and all,can I use them with the disc? Heading out to work now,thanks for the help will check back tommorow.