Hi grumpy,
Yep you are right about the Greenfield, I had great pleasure towing the neighbour JD from his place to mine, I even took a detour past some other neighbours just to rub it in

.
Thanks very much for the info and pic & especially the link to tractorbynet, which then led me to a couple of ytube videos showing how to drop and repair the transmission.
I now have it out & sitting on the work bench ready to pull apart today to see what the damage is.
Will keep you updated as I go, I don't suppose you would happen to know off hand if Toughtorq in the USA will post parts to Aus.
If you don�t hear from me for a few days, it�s because I have changed ISP�s and cancelled the old one from the end of this month forgetting that Feb only has 28days & I am not expecting the new sim to arrive till early March
Regards
Rich