Well, yesterdy, actually - finally finished sorting the various bangs and thumps coming from underneath the Niva.
This has involved changing a knackered CV in the intermediate shaft for a UJ one, fitting three doughnuts that disintigrated (they were old ones!), before fitting a heavy duty unit, replacing both propshafts that were, for one reason or another, useless, with brand new units. Replacing useless UJs in the new shafts (two days use!) with new ones, then having to get the new shafts straightened and balanced (get the Russian ones, NOT Polish if you buy any!) to stop the jackhammer that seemed to have taken up residence under my backside, replacing both inner and outer CV joints on the front right drive shaft, and finally, to clear up the final vibration, replacing the heavy duty doughnut with a brand new standard one (do NOT fit a heavy duty doughnut - it's too rigid and inflexible, and CAUSES vibration!).
All in all, several weeks of work, but the car now drives as it did when new, and I'm so relieved to have, AT LAST!, finished sorting it!!
By the way, threatening it with a sledge hammer does NOT work!!
Regards,