Well, I got the ignition fixed and she's running smooth again.
Now the A/C is making a metal-on-metal squeek/grinding noise.

(I can hear even hear it when I take the belt off and spin it with my hand)

Does the whole thing need to be replaced, or is there an easier fix for this one?

 

Sounds like the whole thing needs to be replaced. That's exactly how my AC compressor sounded right before it seized up and threw the belt on my blazer. I think they run $200-$300 or so and aren't too difficult to replace. Just gotta get it recharged once your done obviously.

 

Were 93s R12 or 134a?

 

I don't know the year they changed over, I would guess 134a though. There should be a sticker on your upper radiator mount / shroud thing indicating what refrigerant to use.

 

It will not matter anyhow.. When you get the new thing and have them recharge it.. just have them retrofit it with the R 134a fittings and be done with it.. it is pretty easy. the only thing they have to do is suck out all the old refigerant if there is any left and the moisture...

 

Hope it's covered under the warranty