In a message dated 1/21/03 1:58:53 AM, Radish150@EARTHLINK.NET writes:

<< Anyone have any ideas where the
culprit may lie? Brother had the alt bench tested and it tested fine
(lot that tells us) >>

Mark, my man, your OX and charge LED's are being forward biased, just like
when you turn the ignition switch to the first position before starting.
Whenever these lights are flickering, the battery voltage is greater than the
alternator output voltage.  In my experience, the likely cause is that the
alternator brushes are worn out.  Although the alternator tests good on the
bench, once it is heat soaked during operation the alternator case expands
enough to reduce the contact pressure of the worn-out, and obviously very
short brushes.

Replace the brushes.  If you are adept enough, you can replace just the
brushes at a cost of probably $5 as opposed to changing the regulator/brush
assembly in toto.

George