New Alternator

You can put on your own body ground . Make a cable that you can attach one end to the clamp bolt for the negative term on the battery and the other end to a point/screw on the fire wall. Or the bolt that holds the voltage regulator on. go to here ( http://www.mymopar.com/index.php?pid=24) find what your wiring should be. And check out the 73 Dart wiring to see how the regulator and ballast resistor are wired.