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. Picture

I think one leaf spring is hanging slightly lower than the other.