I would be leaned toward the solid mount causing the noise. I’m running a 203/205 married setup in my truck with no transfer case noise. I do have rubber mounts. I’m praying for you that’s it’s not the case itself. That sumbitch is heavy.
As shown in the pictures I did rebuild everything so it's clean it's not going to be like some dirty grimy old transfer case taking it out. I have my trustee dusty harbor freight transmission jack so it would be strapped to that for sure...
