Your Axle housing is bent.
The Land Cruiser community, and until recently, myself included, has a long standing denial about the weakness of the Land Cruiser axle housings. They bend. Often. Easily. The results are that the shafts are no longer centered in the housings, and the seals cannot seal. And the Birfields are difficult to remove from the knuckles, even when you have the flat spot lined up. And we stand around scratching our heads, not knowing what the problem is, refusing to believe the Earth is round, the sun doesn't rotate around the Earth, and that our Land Cruiser axle housings are fatally weak, bend easily, and cause persistent axle sealing problems.