As my search continues for parts for my 78 supercab resto, I visited a local salvage yard today and I came across a few trucks that have the a/c style heater box inside the engine compartment. WITH OUT A/C!!! Was this an high output heater option? The trucks have the a/c style vents in the dash, but dont have the a/c controls on the dash.

I also found a supercab that has the a/c box and the interior a/c heater control assembly. The only problem is the front of the truck is long gone. And it seems that the parts (hoses) that should go into the engine side of the heater box are gone and the port is blocked off with a sandwiched piece of tin. My conern is that this box will be useless without the lines. Where the lines would have gone into the box, where or what do the lines do or go from their. If its just missing something stupid I can swap it out after its installed(or for that matter If I find another one).

I plan on getting everything that I can fron this truck. Complete dash and all the guts beneith it. $40 ----cant beat it with a stick!!!!!!

The vents tubing (ducts) is the cloth like material. The truck I grabed my tilt column out of has the heater setup I was asking about . And the heating tubes (ducts) are molded plastic. Any one know if these will interchange?

 

Yes the tubes will probably interchange, I think what FORD did was to put the A/C box on there with the option that they would install A/C? My bronco also has the A/C box without air and it is not the high output heater. The lines that come off the box are, 1 goes to the compressor and the other goes to the condenser, there is also a line that goes from the condensor to the compressor. I do not think they installed the evaporator core inside the "box".

 

just wanted to know what junk yard you were at and what they had for trucks. thanks

 

the high output heater had a larger heater core and 'high output heater' on the plastic bezel above the controls. had a 77' F150 with high output and that thing would run you out of there in the winter...................

 

Yes but the question is did they use the A/C box for a high output heater

 

Will the high output heater work in a truck currently without the high output option? Does anyone know the part # of the high output unit? Or where to purchase a quality unit? I sure would like to install one in my '76 F150 4x4...

Thanks all...

 

biz you can check napaonline.com they have many different options and they list the sizes of many. i've never had a problem with a napa core..........

 

Good deal...thanks! I have some checking to do...

 

I had a high-output heater, and it was a larger (thicker) core within the normal heater assembly, no A/C box. never seen a empty A/C box before, but here you would want A/C

 

From what I have gathered for information, it seems that the a/c-heater box assembely was used for the trucks that were equiped withe the "deluxe hi-lo heater option". This option used the same dash configuration as the a/c trucks, including the dash vents. The evaporator core and related a/c parts were not included. And the heater controls have no mention of the a/c selector.

I ended up with most of this information from a junk yard find. The factory 1978 glove box owners manual.