Dan,
I only operated J-D's a few times because my Dad hated them. One thing I do
remember about the ones I operated is that when the transmission is worn they
have a tendency to jump into neutral when going down steep hills ( some of my
first gray hairs were acquired at 12 years old by that). Another thing to
remember: some tractors must be parked uphill or downhill, depending on whether
they are in reverse or a forward gear. Not all brands are that way and I can't
remember what kind of tractor it was that killed a neighbor because of that
peculiarity. Be careful.
DL