Reply To: Question on meschas zevachim (102a)

I believe the Gemara says that on the 8th day of Milu’im both Moshe and Aharon were Kohanim Gedolim. It was the day that Moshe transferred the Kehuna Gedola. I once had a proof from a few places that Moshe did the Avodos Haboker and Aharon the Avodos Ha’erev, but I am not positive that I am right about that.