Unicast rotors 10.87????

I have a 68 Cuda, with what I believe to be 10.87 rotors with the SBP(which I'm assuming is 4.25")... Can this be right or is there not such an animal. From what I've read there are these size rotors that came on E body mopars, but I can't find where they came on Pre 70 A bodies. Can someone tell me what I should do, my objective is to get the right rotors with the SBP or whatever to fit on my 14" rim/tires. Any help would be greatly appreciated.
Thanks in advance.
Author: admin