So then, you're going to convert your HP44 to unit bearing D30 outers? Since that is all I see on their site, I'm assuming that's all they offer... pointless unless you have a Rubicon D44.
The rubicon D44 uses a carrier that is the same as the "4.10" low gear carrier for most D44's, but the carrier itself is a slight bit wider... so it won't fit into a standard D44 housing, which means you need to either machine some off the carrier where the bearings seat or some off the housing itself to make it fit. Then you get to deal with the fact that the ring gear bolts are a different size, so either you run whatever gears are available for a Rubicon D44 only, or you drill out the holes on the carrier to accept standard D44 ring gear bolts. I haven't heard of anyone running a Rubicon air or electric locker in their regular D44 yet, since most people seem to think they're gold plated (including the dealer), and there are better solutions out there (ARB) for similar costs.
Oh and don't forget... the Rubicon D44 is low pinion, only marginally better (arguable) than a HP Dana 30 center chunk.
The only reason Jeep put the D44 in the front of the Rubicon is so that they could say it was stronger... "because it's a Dana 44, not a weak-ass Dana 30", and because it uses the same air locker and gear set as the rear axle, so the whole mess is cheaper to produce.
Oh, but, yeah, it's a "REAL" Dana 44, because that's what Jeep named it. :awesomework: