A 1/2" inch is not much.
What you could try is putting the jack under the drivers side leaf spring.
Compressing or lifting the leaf spring upward a little, may move the end of the torque tube over enough, to line-up the rear yoke with front yoke.
Do you think you may have tweaked the torque tube a little when cranking on the Okie bushing puller?
The torque tubes are riveted into the carrier housing.
Picture You could check the trueness of the torque tube.
PictureI think one leaf spring is hanging slightly lower than the other.