Drive shaft centre bearing

[andreoz]

My SVX is a 1992 model (Australian) with just under 180k on the clock and I have had it since new. Recently developed a clunking noise coming from the left and centre - sounded like my CV joints which was confirmed by a mechanic. Have just had the CV joints and shafts replaced and to my surprise some of the noise is still there but it is very much under left of centre console. After showing it to the repair shop I was told that it is most likely the centre bearing in the drive shaft. The noise seems to be only present when accelerating from stand still and is more readily seen when turning to the right. I had a quick search through the forum and I see that there seem to be two different versions of the drive shaft - one with replaceable bearing and one with NOT.
I am looking for recommendations from any of you who have had similar experience or have had to replace the centre bearing or perhaps it is another problem.