Phak, I used an automotive latching solenoid, not only is it a battery kill switch but it will act as an anti theft device. It actuates by a momentary switch hidden in only a place you know about, its sole purpose is to interupt the entire battery voltage so it is either all on or all off. Rated to 125 amp so it will start your truck no problemo. This is a 12 volt model, they have 6 as well.
1953 Chevrolet 3100 261 cu inch, sm420, 3.55 rear, torque tube still,omaha orange, still 6 volt, RPO green glass, side carrier spare, all done In the DITY Gallery Video of the 261 running
1964 GMC 1000 305 Big Block V6, sm420, the next cab off restoration
