The relay I'm trying to ID is in line after volt reg I know they were in 76-80 plym, dodge with 360's its dimmentions are 2x2and 1 inch thick it has a built in one bolt mountig bracket thats cut at angle. I believe it has somthing to do with allowing the alt to charge bat, and allows the motor to start in cranking position rather than on the backsweep. any help with this would be greatly appreciated