Got my starter that I replaced the brushes on back on the Car and it fired up with zero issues. Not unexpected since the original positive Battery Cable has caused no issues since I owned the Car.

I can understand replacing a cable that has issue but I am not seeing any need for a thicker cable. I mean if the original battery cables were sufficient when the Engine was new and tight and had more resistance to turning why would you need a thicker cables on an old worn engine that turns easily.

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84 300D, 82 Volvo 244Gl Diesel