Build tip:
When building the centre diff on the 44.3. You'll find that the bearings that go around the out drives are very very snug.
The 3/8x5/8 bearings struggle to fit over the washers between the out drive and the gear diff case. You'll need to give them a helping hand. Easiest thing to do is give the bearings a few good taps with a flat head on the inside run of the bearing.