I don't know for sure but I can make some educated guesses based on their other stuff like the Currie housing HP Dana 60. Given that those are built with Set 10 Dana 44 shafts in 35 spline so G2 could use their own axle shafts in them, I would expect nothing different in their Dana 44 stuff with the exception of offering 30 spline as an option. It makes no sense to move away from standard Dana 44 bearings for the diff side since that would limit your options for lockers.
Shame on Polaris and the company they sold to that shut down a fairly good company like G2. I'm not particularly a fan but I hate to see customers left holding the bag.