I know I need a new condensor and compressor. The junkyards around here don't have many thirdgens, so I'm wondering what cars I could rob from that would still work. Are all GM systems similar? And could I get parts from a newer wreck that already r-134 in it so I don't have to mess with all the nasty retrofit. (In my experience, it leaks to easily anyway.) I've got an '88 SC with the V6 for now, but will be putting in a 383 TPI this winter, so I'm trying to keep that in mind as well. Thanks.