Help identifying radiator fan and clutch.

[sdkar]

I have a clutch fan I was told came out of either a 1969 or 1970 GTO.  It is a seven aluminum blade fan with numbers stamped on the clutch.  The numbers are "9790972-PG" and "E29l".  Does anyone know for sure what this is out of?  I don't know how to post a pic here but if anyone wants a pic of it you can email me at sdkar@bellsouth.net.

Thanks,

Steve