Hate to drag up an old thread but it seems to make sense to compile all of the info in one place..
I'm planning on adding A/C to my 1987 Ranger when doing a 1992 Thunderbird 5.0 engine swap. The complete engine and ALL accessories are being shipped to me now. I have the A/C - heater plenum on the firewall from a parts truck that I have. But it's an 88/89 model. I'm sure they'll swap just fine, but I'm sure I'll have to trim down the plenum for the V8 valve cover. Still not sure if it'll all fit or not though.. I'll have to buy a dash control to turn on the A/C system also, as my truck is heater only.
From what I'm seeing on Ebay, the heater and A/C control seems to just have a push switch that's only a two wire connection. Seems simple enough to make my own harness. I'm guessing that I could incorporate the high pressure switch and the original compressor connector into a hand built harness that kicks the compressor on using a relay. I know this wouldn't include a Wide Open Throttle cutout but I don't see that being a huge hazard or problem myself. Just push the switch to cycle the compressor off. Does anyone have any thoughts or experience with this? Any hazards to be aware of?
Here's a picture of the dash control which shows the back of the A/C switch showing two prongs for the connector, so it seems simple enough..
GB