Welcome. I wasn't aware any CFM's had "transfer" cases. I know the new 1000s and 950s they internally separated the transmission from the engine's crank case and they had to vent it in the same manor as the differential and gear case. If its the transmission vent that's leaking, aside from there being a split in the hose, it's a first. Ensure it is filled to the proper level with the proper oil..looks like any 75-80w90 will work.