Anybody know what this box is for?
Took the dash out of my 77 Ford F100 shortbox today. Found this electrical component on the drivers side up in by the parking brake release. I have no idea what it does. Doesn't seem to be anyplace to plug it in. This truck has been screwed with a lot over the last 35 years. I know it was a standard 4 speed at one time due to the hole in the hump. Anybody recognize it? Do I need it.