Thanks both. Just replaced gearbox oil and no change. Not realy any debris in the waste oil, just a teaspoon or so of silty metal powder stuck to drain plug magnet. I also sent the audio recording to Dave Ashcroft of Ashcroft Transmissions and he recons either a pinion bearing or layshaft...

Hi all, I'm new to the forum so sorry if I break any rules... My 2004 Discovery has developed a new noise coming from the gearbox (R380) (or maybe clutch?) - it stops when I put the clutch in, meaning it's after the engine, and it's there when stationary and the transfer box is in neutral...