6 cyl switch wiring - V8 switch wiring ... they both came off factory wiring diagrams, works on the trucks I've had

if the resistor bypass wire went directly from the starter to the coil the truck would fire whenever the foot stomp was depressed regardless if the key was on or off, pretty dicey situation .... with proper wiring the coil only gets power from the ign switch, either from the resistor or the starter

Bill


Moved over to the Passing Lane

"When we tug a single thing in nature we find it attached to the rest of the world" John Muir
"When we tug a single thing on an old truck, we find it falls off" me
Some TF series details & TF heater pics & Rust-a-holics Unanimous parking lot