I have a moser 12 bolt in my 91 Z28. I run my stock 9 bolt backing plates and disks on it. The backing plates had to be moded to to fit the new bearing. Those specs of that mod I lost and I will need to do them again. Does anyone have them. I guess I can always measure my old ones, but I would rather have the info before that. Thanks for anyone that can help.

(I am buying Eb Millers backing plates to install some rear C5 Z06 calipers.)