Oh yea,, totally agree, I was just trying to make them tie together.. LOL
If you can make sure one is to spec then check the other you can tell if the axle tubes and knuckles are in their original position or if the axle is modded..
I've had 1 side twist before.. weld broke.
Thought of another possibility.. My YJ used to have a low frequency vibe in the front that went away when I converted to Hubs and got a 1 piece axle on the right side and got rid of the disconnect. Any time I have the hubs in there is a "rumble" under the front..
Dave