Never seen one controlled by vacuum, all I’ve worked with simply used one 12V+ wire. I thought diesel didn’t make vacuum anyway?
Switching to a different compressor will involve a custom mount. Not all that easy unless you have a welder and a bunch of tools. The hose fittings may be the same, but I doubt it. I put a compressor from a Toyota Tercel on my Chevy V8 a few years ago. I made the mount from scratch, and installed new –AN fittings on everything. I also did the same on my ’91 Toy 4X with a 4cy. I like the Tercel setup and a complete system from my local junkyard is $85, and as a bonus they have ½ price days now and then.
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