Its been a week or so since I posted an update here. NOG continues to run about with her 'new' gearbox performing very sweetly. No grinding, no nasty whine, not even any bad vibration at high speed.
Cause of death of the old box appears to be the big nut at the back of the mainshaft having not been done up properly - hence the mainshaft had been slapping backwards and forwards with nasty results everywhere.
The mission for next saturday has been determined - when I'm not struggling with Bitsa I'll be tightening NOG's steering box up along with the associated bracketry, as it all gradually works lose, and gets more and more wobbly when left to its own devices.
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