Well, it had to happen I suppose. The breather tube on the front axle had been off for an unknown amount of time. I would expect quite a few thousand kilometers. In the meantime the car had been driven on many unsealed roads and had also crossed a very salty creek about four times - salt concentrations about 5 times that of seawater. Although the oil has been changed several times, nothing is going to save it. Noisy & whiney. So, I'm on the lookout for a replacement. Probably best if I can a complete axle from a wreck. FYI, its a Disco series2 TD5 with the late model axle, fine splines so I've been told. Location is Adelaide, South Australia.