When repairing car parts it is important to have diagrams. A wiring diagram can be found online, and in maintenance manuals available in car part stores.
Wiring diagram for 1972 ford f100 truck w/360 engine automatic trans, AC & Power steering?
google.com google.com
LMC.com
The diagram of the 1974 Ford F100 transmission shows the location and direction of movement for all gears in the transmission. This diagram is designed to aid with the rebuilding or repair of a transmission.
what is the torque setting 1973 FORD F100 360 engine . for my heads and manfuld thanks
10 degres
Try the Autozone website, I have downloaded almost the entire repair manual
http://www.fordification.com/index.htm
See Link below it should help. ----
The vacuum diagram can be found in a service manual. Your local library may have a copy of the manual that you can check out or copy the diagram from.
My guess would be your alternator is going bad. better get it checked out pronto.
you should find a sticker in the engine compartment that has this diagram on it, if not you'll need to get a repair manual.