Hi, I was looking at upgrading from an np203 transfercase. I noticed that the np205 can be modified in many ways. But, it is pretty hard to come by. I have a th400, and was looking at the np208. Can anyone tell me if this is a good upgrade? Also, can you tell me the pros and cons of it, and if you like it? Im looking at making my rig into a rockcrawler/mudder. thanks.