So I decided I was going to get AC Delco or "GM Parts" from Rock Auto. I saw a couple YToob videos on replacing compressors...trying to find one specific to 1987 is not so easy. Anyway, looking through the service manual and catching a few heads ups from install info, it looks like a bit more than just filling the compressor with PAG oil and replacing.
Is it necessary to empty the system of refrigerant, replacing orrifice tubes, receiver drier, o-rings, etc...?
Starting to make me think this could be on another level for me. I was planning to knock this out in a matter of hours or possibly over the course of a few days on and off as work and life will allow. I might need to turn this in to the pros at the garage and eat the labor. I would like to save the money though.