scary vibration

[blitz]

more problems, I felt a minor but noticeable "clunk" that wasn't normal yesterday afternoon driving off in my Disco I. accellerating up to 50km normal then vibrations like going over fine corregations on a dirt road? ease off the accellerator vibration goes away

got home today checked everything for heat all fine BUT there is a fine line of brake fluid on the drivers side rim and it is pulling to the left quite strongly now?????

It is definitely a drive line problem I just dont know what would do this.

I am going to pull the tailshaft off so I cna still drive it but any one got any ideas??

Blythe

[stage one]

When my front diff spat the pinion cross shaft it did a sort of similar thing. It would drive fine for a couple of ks then under power it would start a nasty vibration that would go away when I backed off. I thought it was the front tail shaft at first but it was fine, I then jacked up the front wheels and rotated them by hand; I could notice it was crunchy every few turns.
Might be an idear?