.044 inch
yes they both have ford 5.4.5
no plug on trans pan----u have to drop the pan
153624
no more than .035
The truck box is the same from 1980 to 1986.
Under the cover that is attached to the top radiator hose at the engine.
( .044 inch ) according to motorcraft.com
The 1980 Ford F-100 has a 10,000-pound towing capacity and a 4,700-pound load capacity. The truck features a V8 engine.
It is an orange wire out of the plug in the back of the instrument cluster and it runs to the tank unit
fordparts.com shows .035 inch for two spark plug numbers and .030 inch for another spark plug number ( I believe the .030 inch is for heavy duty use )
hey just call your local autozone, or advance and just ask them they will tell you for free, good luck,,,,,,,,,,,
F100 1961-1966