Today, I sold my 51 8N with Sherman combination transmission.
I did so with mixed emotions as it has been and remains a very good 8N. It has also been in the family since 1974.
I believe it has found a good home, and I have forwarded this and other websites to the new owner and have offered to help him with any issues that he may have when I can. We may have a new member.
I will keep the 52 with just over 1,100 hours and Sherman combination transmission forever, though the loaded 55 860 will likely go within the next few months. The barn has turned orange.