1972 Front Disc Brake Conversion

You would probably know better than me, but I thought there was something other than just the bolt pattern that had to be changed. It wasn’t a big deal but it would have required machining, like changing the hub for a different bearing or seal? Maybe something has changed since then, I only looked into the KH style kits briefly quite awhile ago.
I actually got a sales guy on the phone who was rather bitter about leed brakes mimicking their kits. Brackets everything are the same. The kits use a spacer and adapter behind the inner bearing to move the rotor outboard to match to the caliper location. It also provides the larger diameter seat to use the Phord inner wheel seal.