OK, so far I think I have figured out that the positive cable replacement # is 2770662 for my 72 dart. Then looking around on the computer I see a lot of folks listing a 3764166 which is supposed to fit 70-74 challenger/cudas, 68-74 dart & 70-74 dusters. Does this seem right? The only reason I'm asking is because the #277 costs $130+ and the #376 is just $30 and from the pictures they look the same except the high one has that heat wrap on the bottem half (OE look). Anyone who knows about this or has some experience I sure would appreciate your input.:notworth: