Just to confirm (as I'm still very much learning)
I need to ask if they can "weld the mainshaft tip with a hard surfacing rod, and then regrind to original sizing"
Also, the tip is 12mm in diameter
Later gearboxes had an 18mm tip, but still have the same wear issues
Could I do something here to resize mine to 18mm, or would that make no/little difference?
Thanks again for your help