Transmission hump/transfer case shifter

[sovapid]

Can any one help me figure out what I have in my Blazer. 1972, 4spd, np 205 transfer case.

Here is an overall shot. Guessing it is a transmission hump from an automatic based on the fact that the transmission shifter hole is just cut out.





The transfer case shifter is off. When it is all the way forward in 2 lo, it is no where near the forward edge of the hole in the hump.

This is all the way forward:



I'm not sure the transfer case will actually move all the way back to get into 4 high. I think it is hitting the back of the hole first. I'm pretty sure this is 2 hi:



Finally, I'm pretty sure it is a high hump tunnel:



What do I need to do to fix this? Proper 4spd transmission hump? Correct shifter for transfer case?

Thanks

Sean