2020 Mercury 250 Pro XS Ser. 2B743128
Don, I want to Thank you again for helping me. You are definitely the Mercury Master and I do appreciate the fact that you take the time and put forth the effort to help all of us. My prop nut coming loose has been resolved. As it turned out I checked the old Belleville against the new one with a dial caliper and the old one had lost .028 of cup compared to the new one. I have only been out once but according to my marks on the shaft and nut it hasn't moved. Thanks again for everything you do for us !!!