Joe,
The COPO carrier is p/n 3916243 made from a EDB30174 casting.
It was listed as the following:
3916234 Differential, w/case (special diameter)
with the following special parts:
3918834 Plate, Differential Clutch Pressure 2
3918832 Pinion, Differential 2
3918831 Gear, Differential (special diameter) 2
3918833 Washer, Differential Pinion Thrust
Hope this helps,
Eric