1967 barracuda brake rotors help

timely thread...Im redoing the front suspension on my 68' barracuda (sand blasted all parts, pushed in new bushings, etc) and when i went to press in wheel studs through the new bendix rotors and into the hub, the lug hole diameter of the bendix rotors is about .010 to large. the 7/16" wheel stud floats around in the hole, compared to the old rotor that has a nice snug fit.
I talked to summit rep this morning and they couldnt say why the oversize hole but gave me bendix help line. I l/m there and waiting to hear back.
any ideas?