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Hello, if you drive the vehicle in four wheel drive does it get better or worse?
If you take the front driveshaft out and drive the vehicle does the noise go away?
If the driveshaft being removed eliminates the issue I think your concern is in your transfer case. If the driveshaft has one u joint in front and a rubber boot with the joint in the rear then I would suspect the driveshaft is faulty. Do you have a photo of the driveshaft?
So it is a normal driveshaft. If you turn the front differential by hand does it sound different at all?
If you have the vehicle in neutral and turn the transfer case do you hear abnormal noise?
unless a new u joint is sticking which can happen. Do the u joints turn freely in all directions when moving by hand