[wiswind]

The $1400 quote was because it is a job that has a standard repair time of 6.3 hours....not including evacuating and recharging the A/C.
Also, FORD updated the unit........so the dealership part has a list price of $499.98.....as you have to get the whole box with heater core and evaporator due to the design change of the part.

Mine failed.......and I had the work done for me......because it is a reall pain in the rear to do......up under the dashboard.
Also......it is illegal to do A/C work on your own in Wisconsin......you have to have a license to buy the R-134.
They were able to get a aftermarket core that matched the OEM unit that was in my vehicle.....which is what I am guessing you are looking at on Rockauto.
That may actually add some more labor to the job.....taking apart the box and changing the evaporator.........But I don't know for sure.
The repair to mine worked just great....and still works years later

The instructions tell you to remove the instrument panel to get to the box.
It looks like the box comes apart at about the heater core location.
You have to remove the heater core from the box to get to the evaporator core.
They state that you also have to replace the accumulator (engine compartment) when you do this job because the A/C system has been opened up.
You will need to evacuate the system and add new refrigerant.


If you do work on your vehicle.....you may find a subscription to Alldatadiy to be worthwhile....they also keep updating your vehicle information with TSBs as they are released by FORD.
You might be able to find FREE information on the AutoZone website as well.