Volvo 360 release bearing Update:
I have been told that the volvo 940 with the M90 transmission has a similar release bearing, only it's shorter. For reference it's Sachs P/n 3151 189 031.
This is the original:
What you will need to do is put a 3mm spacer between the bellhousing and the clutch fork pivot ball. I'll report back, hopefully with a success story.
Also, the factory pivot ball on the 360 has a nylon cap. My donor car's pivot ball had a disintegrated nylon cap causing serious metal fatigue on the clutch-fork-pivot-ball-socket <---(try say that really fast 5 times!), to the point where the pivot ball had almost worn through the clutch fork completely. This is worth checking and replacing if you are doing anything clutch related.
Here's just a photo I've taken of the clutch fork and release bearing in situ. The pivot ball socket clearly on the left. If you look closely you can see where the socket has split in the centre.
