Restoring and swapping a factory Air Conditioning system

[cjmdjm]

Hi guys,

My question relates to a C65, not a pickup, but I imagine the A/C systems are pretty similar from C10 to C70, correct me if I'm wrong. If anyone knows of a good chevy "big truck" forum, let me know.

I've got a couple C65s (both 1975s), one I use to haul grain, and one I bought for parts. The parts truck has factory A/C (minus the compressor). I saw online that used or rebuilt compressors aren't too expensive for most vehicles. I would like to swap the A/C system into the grain truck. The dash is much better in the parts truck anyway, so I'll swap them to get the A/C vents.

The main thing I want to know is exactly what model of compressor I need. Sites like amazon and ebay have tools to tell you if a compressor will work in your vehicle. But they don't work for anything larger than a C30. Would a C65 use the same compressor as a C30 of the same year? Both my C65s have 366 engines. Also, does anyone know where the compressor mounts on a 366 engine? If someone has a picture, that would be awesome.

Has anyone done something like this before? Are there any tricky problems with switching the condenser and evaporator/fan? The compressor was removed years ago, and one of the lines wasn't plugged. Do you think I can get the condenser/evaporator cleaned out with a bunch of A/C flush fluid? I assume I'll need a new expansion valve and filter too, right?

Thanks guys! And my apologies if this doesn't belong in a Pickup forum. Thanks!