Superstock Springs @#$%^&@#^%&

Yes move one thing and it can have a domino effect. It depends how extreme you want to get with it. Usually it's about a 1/4 inch or so and I really never had any bad vibs or anything by moving it this amount. Now if your running slicks and have 500 600 horses or so everything should be correct.
Frankly, moving it(the rear) towards the drivers side may actually correct it (driveshaft angle)because it may have been at an angle while the whole thing was shifted to the passenger side. It would be interesting to know the result.