Sorry to hijack your thread but I was hoping maybe someone could give me some advice. I’ve got a 68 convertible that I’m converting to disc brakes as well but the car has stock 14 inch wheels (non-Rally). I’ve been told that 14 inch wheels won’t work with disc brakes. I was thinking of getting the 15 inch rally wheels anyway but I didn’t know whether it was necessary to get the Rally wheels with backspacing or not. If I can’t get a definitive answer I’m probably going to go ahead and get the Backspaced wheels because I don’t think there’s any harm in getting the backspacing but I could be wrong. Any advice would be appreciated