Well, I still haven't had time to actually work on the truck, but I needed to use it this weekend, and was not willing to sweat my ass off again, so here's the way to get the A/C to blow out of the vents in the dash....Look under the dash, above the gas pedal, and you'll see the vaccum canister that controls the ducts. Hook up your Mighty Vac vaccum pump, and give it a few squeezes...and whattaya know, the vents blow cold air out again. If you need Defrost, release the vaccum pump, and out the defroster ducts it goes.
I know this is half assed, but for a quick temproairy fix, this is the way to go.... Mike