Hi George,
The part number on my ignition box is D4AZ-12A199-C. That number crosses to Motorcraft part number DY-157B. It has a black colored strain relief.
I found a site that lists most of the Duraspark ignition modules. On page 4 of their document you will see the (black "grommet" or strain relief) unit.
http://www.mitechignition.com/automotive.html
Click on "Control Modules"
I guess I will get out my ohm meter and see if I can find a resistor wire anywhere and if not I suppose I will add a ballast resistor.
Thanks for your help, Scott
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