I'm more interested in the factory installed ac.
My truck is equipped with the high low vent and I have the evap housing already there, just need to add the necessary parts to make it work.

 

I can, but mine looks pretty much like the bottom two pictures in Mike's post (less the rust LOL). Unless you are talking about the fittings at the compressor too? Which mine is different in that I am using a serpentine belt set up from a 90's F150 and an FS10 compressor.

EDIT: Since the lines for the FS10 are connected to a block that attaches to the back of the compressor I had to come up with a way to attach my hoses. So I took the factory block and used a tubing cutter to cut the metal hoses and then had the proper #8 and #10 male insert o-ring fitting welded on so my new hoses could easily be attached.

 

Here are some pictures of a new evaporator, expansion valve and temp control switch.
The temp switch mounts inside the evaporator housing and the end of the thin tube slips between the evaporator fins.

 

Thanks for the pictures guys.
Jsutton would you happen to have a pic of the hoses connecting to the evap?
I'm not all that knowledgeable on the a/c system, so seeing it helps me understand how it all works.

Mike thanks for the help as well, is there a certain part # for the thermostat for a 79 model f150?
And where can a guy buy a new evap other than LMC for a decent price?

 

The evaporators are getting harder and harder to find, I think LMC knows this.
I'll do a search and see what I come up with.

 

2 different factory A/C evaporators.

(1) D5TZ-19860-A .. Evaporator Core Assy-Use with factory installed integral A/C (Motorcraft YK-54) / Obsolete

Applications: 1975 F100/350 from serial number W00,001 / 1976/79 F100/350 / 1978/79 Bronco.

BAYER FORD in Comanche TX has ONE = 325-356-2777.

COLLECTORS AUTO SUPPLY in Oroville WA has ONE = 800-414-4462.

No other Ford Dealer or obsolete parts vendor has any.
-----------------------------------------------------
(2) D3TZ-19860-A .. A/C Evaporator Core Assy-Use with factory installed integral A/C (Motorcraft YK-39) / Obsolete

Applications: 1973/74 F100/350 / 1975 F100/350 before serial number W00,001.

No Ford Dealer or obsolete parts vendor has any.

PRIMERED79 SHORT BED: Factory installed integral A/C is combined with the heater. The A/C controls are in the same panel as the heater controls.

 

Dang Bill, I am gettin' slow. I came up with the same info but hadn't posted it yet. I was looking at aftermarket suppliers too.
The evaporator that I have in the pictures was made by Omega Enviromental Technologies in Houston, TX. I liked it because it is a copper core not aluminum and I paid $157.00 for it. I went back to their website and punched in the p/n. It still lists it but it has the note "currently unavailable". This is the same problem I have with other aftermarket numbers I've tried. Unavailable, discontinued or it's just not listed at all.
I know LMC lists them for around $300 which I think is rediculous....untill I looked at the Ford list/cost prices....ouch!
D5TZ-19860-A (YK-54) List $543.70 Dealer cost $271.85
I don't know where LMC is getting their's from but I'd like to find out.

 

Man these prices are nuts.
A JY would be the next step, but on something like this I'd rather have new.
I never checked, but does bronco graveyard carry anything like this?

I checked eBay last night, you can find expansion valves all day long, but I couldn't find one evaporator.

They even have the thermostat like mike posted but that's all I could find.

 

Yeah, everything in the A/C system is still readily available, including the condenser, EXCEPT the evaporator.

 

I would have liked to buy a new one too, but I went the JY route and got mine for $8 (half price day). The only reason I needed a new one was because I was and idiot a few years ago and threw my original one away.

 

D5TZ-19860-A evaporator is obsolete, can no longer be returned to FoMoCo for credit, so Comanche is STUCK with it.

Obsolete parts of this vintage were "written off" years ago, so the dealers have nothing invested. Call and when the price is quoted, if you don't like it, make an offer.

If not accepted, chisel some more.

 

I came across this today, the evaporator is $168.00 "BUT" it says "call first", I figure that's another way of saying "not available".
Action Air - 27-33663 EVAP BRONCO 78-79 / F150-F350 75-79 T/F