Wouldn't it be best to start with an assessment of whether the driveshaft was balanced or not before taking it apart? My driveshaft is very smooth, so when I pull it apart, it's going back together exactly as it is - regardless of these orientations - doesn't this make sense?
With unknown driveshaft parts, I'd start with Richard's advice of even spacing.
Joe
With unknown driveshaft parts, I'd start with Richard's advice of even spacing.
Joe