[jimmyj900]

I have a 2003 Thunderbird and their is an unhealthy sound coming from the alternater bearing(s).

What the hell is an 'unhealthy sound'? Can you be a little less descriptive so nobody has a clue?

Is it a light rattle at idle, a heavy clatter at all rpm, squealing or what?

A little more info might just happen to be helpful.

This is like somebody posting "My bike broke. What's wrong?"

Jim