Hello all,

Before I just dive in to this dashboard, would anyone care to point me in some time and knuckle saving directions?

I have to replace the heater core in my 1973 F100 2x4. It has the economy dealer A/C installed (a small panel to the left of the glove box, two ***** and two vents in a tasteful faux wood paneling with the Ford logo on it).

So, any helpful hints as to how this comes apart? Ideally if you can tell me where the large, red button to have the whole thing pop out as one piece and eject the spent heater core is, I'd much appreciate it.

 

I have the shop manuals for the '73. I looked in them and they don't have any information on the dealer installed A/C.
I had the same set-up in my '73 F100. Years ago (like 23-24) I needed to change my heater core too. As I recall, I ended up dropping the whole A/C unit out from under the dash to get access to the heater housing.....it was after that I found the red button behind the ash tray.

 

i need to do this also... does anyone have any input.. some are saying remove dash, some are saying get to it from under dash.. just wondering what the best way is

 

Mine originally had dealer a/c, but its since been taken out. To change my heater core, there were 3 or 4 nuts on the firewall behind the engine that I had to take off, then the whole heater box could be dropped to get to the heater core inside.

 

1973/79 F100/350 & 1978/79 Bronco: TWO different types of dealer A/C, the parts do not interchange!

Economy dealer A/C is not combined with the heater. The two A/C switches are located in a panel that also contains two A/C registers. This panel fits into the dash to the left of the glovebox.

Deluxe dealer A/C is combined with the heater. The two A/C switches are located in the HUGE dash bezel that sweeps across the entire right side of the dash, covering up the glovebox.

There is a separate "hang-on" glovebox bolted to the bottom of the dash.

 

I have the same problem. started on it the other day but gave up, didn't have time to finish. Looks like I'm gonna have to remove the A/C or dash to have room to pull the heater box out. Back to work till next Thursday, try it again next weekend.