Kelsey Hayes replacement rotors question

273commando said
Hi - I have obtained new brake rotors for my 69 Dart kelsey Hayes disk brakes.The problem is the diameter of the replacement rotor is slightly larger than to factory rotor so the rotor doesn't sit tight on the hub, even with the wheelstuds pressed in. Just wondering if anyone else has run into this situation and how to correct it? Would prefer OEM rotors but hard to come by.
Please advise,THanks Chris
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Are you saying the center register is bigger, or that the replacement rotor doesn’t go down flat on the hub?

I have had to slightly counter sink the back of rotors so it fits over the stud swedges.
And I have gotten centric rings that take up the space between the rim center and a smaller hub.