Can you show a picture of which style compressor you will be using? My Ramcharger is an 89 model year, I think. I will have to double check that. I will try to add some pictures of mine. This one is being replaced by a Magnum engine, serpentine system, and compressor so it is all apart right now but I took pictures while disassembling it.
Yep mine has nothing at all remaining for brackets. Here are some pictures. But I'd assume an 89 would work. RockAuto has the same part number for the compressor from 81-93. I could use all the pulleys and brackets off of that.