Does that make any sense to you? Why would changing symmetrical spindles side to side cause the wheel move forward. Of course with the OEM anti dive UCA mounts, more drop due to sway ar change would have the same effect.
C'mon man. He changed more than one thing at the same time as the spindle side for side swap, and one of the other things he changed caused the wheel interference. It clearly says he was running the 73+ spindles before with the 235's without issue. Literally no where does it say anything about using 9" drum spindles, or changing bolt patterns, or changing wheels.
There's definitely some additional explanation that's missing, and maybe I'm missing something. But the way it reads for me a drum spindle never enters the conversation. Perhaps @RLF Cuda will clarify the timeline