No matter what you buy or use you will have offset due to the nature of the beast, also as this is actually built into most rear axles (pinion offset) for a reason, to make the universals do their job, that is to make them rotate in their particular cups, with out this they would be shot with in a hundred miles, so if you think you are doing yourself a favor by lining up your driveshaft both vertically and horizontally you are actually making a bigger mistake, only on true race cars (quarter mile) can get away with this.