nato408,
only if you are using cable select. You can use M/S on a C/S capable cable and position doesn't matter.
So, basically, you're having problems with drive failures on a 40 conductor cable, you can pull the cable out and put a 80 conductor in its place without changing the drive selection.
The connectors just don't quite line up with what you need? Turn the cable around. The center connector will probably be at a different relative position and may fit.
Ed Fair
Give the wrong symptoms, get the wrong solutions.