If I were a betting man, I'd bet they are the same. The two different carrier's external dimensions are the same, the only difference I can think of is where the ring gear is positioned on the case. But don't bet the house on this guess.
__________________ When you have a choice, buy American.
I would say yes because in addition to what was said already. They sell Lunch box lockers for axles without specifying carrier. For example I just put an Aussie in my d30 with 3.07 Which is the "smaller" carrier. This same Aussie can be installed in a d30 with any other gearing, and the larger carrier. The Aussie replaces the spiders. So they would have to be the same judging by that.
Ryan - A good eye, a light foot, and a smart rig. Bolt-ons are boring