I picked up a 2010 challenger rotor from the local auto parts store. This rotor is 13.6” where the mustang rotor was 13.2”. The offset of the brake surface is slightly less than 1/4” further back than the mustang rotor. It fits, but it’s close. A 1/4” wheel spacer will cure all the problems and won’t cause any tire rubbing. I guess if I had used a modern style wheel none of this would have been a problem. New wheels isn’t an option.
The bracket probably can’t get any easier to make either. I made one out of hardwood as a test piece-that’s what is holding the caliper on in this photo.
View attachment 1715686569