Bought a 99 explorer 5.0 and want to install it in a 67 F100. Bought the complete drive line from the shaft to the radiator. Any one ever do this? Want to make a driver, not a racer.
Welcome Thomas, I wish you well but you chose a tough conversion. The others have mentioned the basic items related to the swap, but there are critical things which will stop it from working unless you figure them out.
Find and consult with the 2-3 threads here which are about swaps to other non Explorer vehicles. Those have lots of special details that will help you be successful, or make minor changes to get it done right.
The minor problem is the PATS issue which everyone here can tell you about. That's the easy subject. The tough one is the speed signal which the computer(PCM) requires. In 1998 the Explorer began using the rear ABS sensor from the diff, for the VSS. That's easy to understand.
Beginning in 1998, that rear ABS sensor signal goes to the ABS module, and the wild part is that the 98-01 Explorer ABS module "conditions" it and outputs the required VSS signal to the PCM and speedometer.
What that means is that for a non 98-01 Explorer engine swap, you need the Explorer ABS module, plus a G-force sensor mounted on the frame rail(near the fuel filter). So because your project vehicle is not a 98-01 Explorer which has the special VSS system which includes the PCM and ABS module, plus the G-force sensor(which'd be easy to add), you have tough choices.
Your easiest path is to use a late 97 Explorer PCM and wiring harness, plus convert the 99-01 302 fuel parts with 96-01 stuff. That's the fuel injectors and rails, and add a return fuel line. That also helps you because you don't need the extra fuel tank sensor on top used on 99+ Fords.
Meaning, if you use a 1996 or 97 PCM, then the ABS module and VSS signal is no issue. In those the VSS comes from a normal speed sensor on the transmission or transfer case. Your 99 parts don't have a VSS/speed sensor in the trans/TC. Others have installed the 98-01 Explorer systems into a non 98-01 vehicle, and discovered these problems after the install. Reseach it now and decide what's best for your project.