So on my neighbors truck I did the brakes all around as well as the RF axle u joint.
i'm putting it back together tonight. I slide the axle in all the way straight and flush.
Then put the hub on, tighten the axle nut to make sure it's fully seats, take it off, tighten and torque the wheel hub bolts, then go to tighten the axle nut but the axle pulls out from the diff and creates a gap
As well when I spin it, it's not smooth, as per the other side is
I'm not sure why it's doing this, I hope someone can help.

Thanks in advance