Hi ed,
It seems that some MA61's had a close ratio W58 box, also fitted to my car:
3.285, 1.894, 1.275, 1.000, 0.783
As far as I understand (which is always limited), it was from a North American spec. model.
The box is getting tired now; it needs ATM to keep second syncro working cleanly. However, don't want to pull it to pieces and find that parts are hard to get here.
Searching is such a slow and unfulfilling business.
Polite? Perhaps. Patient? Sorry no.