Ignition Ballast Resistor, 1966-1973 Ford Bronco

New Ignition Ballast Resistor for 66-73 Ford Broncos with factory points style distributors. The ignition ballast resistor reduces the voltage going to your stock ignition coil from the 12v that the battery transmits down to the proper voltage for your factory coil. These ignition ballast resistors are made using advanced technology and premium materials and have been made to meet or exceed OE specifications.