Drive shaft is number one on my list.
Here is a pucture of a 75k mile dealer maintaned Range Rover U-joint I guest replaced.
And this u-joint had greese fittings yours does not, so you can imagine what your could look like.

 

If you are interested you could text me sometime 310-910-6085 fredd. and yes we go offroading but not that real crazy. since my friend's disco is pretty much stock. but when we can we hit some good ones. so text me some of these days so we can meet at any parking lot and know each other.

 

Sounds like a plan. I think we are going to test out my friends new tires this weekend at Azusa Canyon mud pit. I'm not prepared to do crazy stuff with my disco but I will probably bring it to get a little dirty. We should be going Saturday. 626-381-8563

See photo of craziness that goes on there.