So a small update on this. Ended up replacing most components in the system. Went with a UAC kit off of rockauto.. dont ask me why, its just the one I picked. Hope it is a decent kit. It included the compressor, dryer, orifice tube and ordered a full set of AC Delco seals.
Replaced all the seals i opened up in the system.
Got it all sealed back up, vacuumed and didn't lose any pressure for over 2 hrs. Threw on the bottle of freon and....
My 88 didn't have a high pressure shut off switch (88 & 89 didn't come with one), when I shut off the engine on a hot day, restarted it 10 minutes later the pressure went so high, it blew the pressure switch out of the back of the compressor - sounded like a shot gun going off
This literal thing happened as soon as i stared drawing down pressure on the hi side. I had to swap the pressure sensor into the UAC compressor and it is located directly in the center. Blamo!
I found out later the snap ring did not seat properly because of these stupid ridges in the sensor housing. So I filed them down and replaced (thankfully it was still in one piece).
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Wash rinse and repeated the prep steps and vacuumed and managed to get about 36 oz in it. Blwoing cold and holding good pressures n temps. 40-50 on the low, and 225-250 on the hi sides.
Get it all stitched up and shut the truck off...
F-Me! Heard a hiss at the condenser. Its the lower line fitting where I disconnected for the orifice tube access. Unbelievable. Just hit it with some gasket maker in hopes it will hold a charge for this season. If not ill tear back apart and just do new condenser, line, and fan there. Fml