The axles/diffs in the new JK's are different than the 03-06 Rubi's. My 03 Rubi is on 35's and I have no fear of diff failure (or axle failure at this point (Alloy USA front/rear).

If I am not mistaken the D44 in the new JK's are close to the M226 in the X's. I am trying to confirm this.