Blimey, mine are obviously very well worn too, it really makes you wonder what constitutes a gearbox “rebuild” then doesn’t it….View attachment 121382
Example of shafts. (Forget the rust, these are just shafts for waste). On right, a new one, on left a used one. You can see that one side of the slot of the used shaft is shaped. This comes from the lack of control of an H pattern in the UN1 conception for shifting. As the finger is only cable driven, it can move in diagonal and then shift after shift eats the slot. This gives bad shifting as the finger is not at the right place.
Hello Shaun, I have 10.00 mm for A and 14.00 mm for B.