D Winn,

Welcome to the Stovebolt. I was in Grass Valley three weeks ago and saw a old Stovebolt in a driveway across from the Holiday Inn Express....probably not yours though.

The little item on the coil bracket is a capacitor to reduce ignition noise in a radio. The D-R probably represents Delco-Remy and 3mf is the electrical rating in micro farads.

That item has no bearing on how the rig would run, it is for 'static' suppression only. A ballast resistor is a different item, not used on your old truck.

Stuart