I just got my fj40 back together today after a new radiator and a alternator, thermostat housing a t-stat, But when truck started fine and ran fine but close to home it started to die out, finally made it home ater having to go really slow, but i get it back and check the battey with the truck runnig, its 12.78, so the alternator isnt working, my question is what in the hell would make it stop working , i took the old one off and out the new one on. I did go from a 1f alternator to a 2f, are the voltage regulators the same? and also is this the voltage regulator in this picture Theres three wires on the box but i only have 2 connecting to my alternator in the plug and the other wire from the battrey , thats what i had on the 1f and the alternator worked. thanks