69' Coronado 25
I am going to machine some new all rope halyard sheaves for my Coronado 25. I need some help with dimensions, I know the pin diameter is 5/16th, what I need is the overall diameter and the width. The mast is up and I don't want to take it down just to measure it, then step it, then drop it again to change sheaves & halyards then step it again. Please help.