Yep, the only difference between the Rubi's front Dana 44 and the TJ's Dana 30 is the center pumpkin and inner 30 spline axleshaft.
The Rubicon front Dana 44's axle tubes, outer-C, ball-joints, knuckles, u-joints, unit-bearing hubs, 27 spline outer axleshaft stubs, and brakes are all otherwise identical to the TJ's Dana 30.
