I’ve had it up on jack stands numerous times, can’t really figure it out, it seems like it’s not the axles (just rebuilt by Axle Express), but something with the diff, but not the KAAZ unit. Maybe gears? But I had the back lash checked and it was fine. So that leads me to believe the output shafts. The open diff I used to swap the KAAZ into never came with output shafts, I used an old set I had from when I chewed up a gear set with the VLSD.