Finally got round to doing this today, been busy with work commitments.
So got the gearbox and transfer box dropped down, had a look in the clutch. Looks to be ok, which is worrying. There's was some oil in there that shouldn't have been. Not much though. Clutch seems ok, but will be replaced anyway. Gearbox input shaft is fine. Splines are really good. The only thing that I could find in the clutch housing was the slipper pads on the clutch arm were both completely locked tight on one position. Could this cause the problems of loosing drive?
Also there was a crack on the clutch arm, hadn't punched through but couldn't have been far off!
Should I be thinking about splitting the gearbox and transfer box to check the shafts there? Is there an easy was of checking this without splitting them?
Cheers guys!