1967 barracuda brake rotors help

agreed. but the holes in my new rotors are too big (the studs float around in them) compared to the old rotors where the studs fit snugly. the bendix part number that I got from summit is PRT 1054 and when I cross check that with rock auto it's the same part number that they recommend.
this is a project car I picked up, so I dont know the history of these brakes. it's looking like the worn rotors I"m replacing aren't intended for the car.
I'm going to start by checking the 7/16" stud is correct