[s-cars] Throw-out bearing

[JR]

I have a whine coming from my drive line only upon down shifting/engine 
braking and not all the time.  The harder I engine brake the more likely 
the sound will occur and the louder it will be.  It has been suggested 
that this can be a bad throw-out bearing.  What is involved in repairing 
a throw-out bearing?

Thanks,

JR