Electrical cable assemblies formed by joining two halves or sections with each section having grooves extending from end to end and outwardly projecting ribs alongside the grooves with the grooves and ribs on one section being laterally shifted relative to the other section so that when the sections are brought together, the ribs enter facing grooves on the opposing sections to cooperatively form passageways for electrical contacts positioned in the grooves. A fixture useful in assemblying the electrical members and a method are also disclosed.