I've swapped in a different transferbox and now have a bit of vibration between 40 and 50 - which I remember Les on here saying can be caused by the output shaft bearings.
I'm no expert in what to look for - but when I fitted it I couldn't feel any play? What would I be looking for, in out or side to side, or could the bearing wear and not be felt at the shaft?
If I run it with a prop missing, and it is the bearing, would the vibration go? If I'm taking the prop off to check that may the simple answer to confirm it if it would.
Any help gratefully received !