i got a 95 sonoma with a 4.3 (serp belt) and want to get some on board air goin on... i searched and found that people have converted gm compressors. apparantly it worked out well for them once they took care of oiling issues. im at the point where i think my compressor is toast and cant decide if i should get a junkyard compressor and convert that or say fawk the gm compressor and get a york. a gm compressor will bolt right in and use same serp belt... york would take some work to get mounted and not sure if i can get a serp pulley for a york for my application? what u guys think about my compressor conundrum?

You can get the serpantine clutch from On board Air (http://www.onboardair.com) but it's pricey...