Measure the stud barrel as shown in your pictures, then measure a new stud or I will. My 72 Duster only had 50K and were swedged, like all my original K-H rotor and hub assy's. Do you think Mopar only randomly Swedged studs? Or did they swedge them all like front drums? Why were rotors only sold through Chrysler as an rotor and hub assembly? Or did some shops swedge them for fun? I showed a pic of a swedged stud from a previous thread where someone swore there was no such thing... What a joke. I leave you guys to carry on your big hammer installations.