1966 Newport - AC clutch parts

Anybody know where to source the clutch assembly for the Air Conditioner for a 1966 Chrysler Newport?

My factory AC was running great <img src="http://www.aaca.org/ubbthreads/images/graemlins/cool.gif" alt="" />, then I went and changed my belts (is this a coincidence?)and now my clutch sparks and squeals when I engage my AC <img src="http://www.aaca.org/ubbthreads/images/graemlins/shocked.gif" alt="" />!

This factory unit has been running just fine and the car has only 86k on it. A local yocal mechanic who let the car sit for two weeks insisted the AC compressor was seized <img src="http://www.aaca.org/ubbthreads/images/graemlins/tongue.gif" alt="" /> and tried to scam me into buying a whole new compressor. I want to keep the factory unit.

I say BS <img src="http://www.aaca.org/ubbthreads/images/graemlins/mad.gif" alt="" />!!! Because if I move along at about 60 mph and engage the AC for just a half minute, I already feel the chilly air <img src="http://www.aaca.org/ubbthreads/images/graemlins/laugh.gif" alt="" /> - but then I turn it off 'cause it boggs the engine down a bit and I don't wanna damage anything <img src="http://www.aaca.org/ubbthreads/images/graemlins/wink.gif" alt="" />.

Cheers from (Whiskey) STILL dry Yadkin County, NC!