I think you have helped me tremendously 3B ! You are right about the studs and how they attach the master cylinder to the flange. It has been so long since I worked on it that I forgot it was assembled with studs, And I was trying to use bolts coming from inside the flange to screw into the master. I will look for those studs that I removed off of the old cylinder and if I can’t find them I will make my own.
Thank you so much sir 😊