Clunking Gearbox?

[steventh]

Does anyone else have a gear box that "clunks" when changing going into gear from Neutral.

Ive changed the oil and this now happens. If I have the clutch in for a few seconds and then change no clunking but otherwise quite a "grab".

I assume it is because some of the gears shafts are rotating when in neutral with the clutch out.

Does this mean that oils that allow this to happen a have less friction (the gears or shafts keep rotating for a second or two even when the clutch is in) than oil where this does not occur?

Thanks in advance

Cheers