What is this squeal noise ?

[Barry McInnes]

Hi,
I need some advice on a squealing noise that lasts up to 1-2 seconds, and 
randomly happens about once a day in normal driving.
It mostly occurs when letting out the clutch and turning, but also happens with 
the clutch in and small revving (less frequent)

Opinion seems to be the bearings in the clutch, but is this the most likely or 
only cause ? Do I wait until its real bad, or can things get repaired "cheaply" 
before they get worse. Any tests to decide what it is ?

thanks in advance
1989 200 TQ 110K stock with SJM Chip and spring
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Barry Mc Innes
Email: bjm at cdc.noaa.gov
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