I'm not sure that's totally true, Zach (about equal turns). I was surprised at how much my side to side height changed when the swaybar was off. The two torsion bars are actually different lengths and I'm not sure that the same amount of turns necessarily equals the same height -- in fact, without the equalizing effect of the swaybar, it probably seldom is.
Either way, you probably don't need to disconnect the other one unless your swaybar has moved too much to one side of the other.
Since it's already disconnected on one side, verify your ride height somewhere level with the wheel straight and the vehicle having been rolled straight to the position it's in. If they're the same, fine business.
If they're not, mess with the bar adjusters until they are close.
As far as reassembling, you don't need to remove the remaining good link, but do make sure your bar isn't shifted to one side or the other before reassembling the replacement link to the truck. Otherwise you may just break it again.