Do all 67-72 Transfer case Shifters and linkage interchange?
 

Thanks for any help?

Nope.
You have to determine which transfer case you have first. On the NP205 there were a couple of different designs on the shifter lever. Do a search and you will find alot of good info with pics on this.

breeh's right as has been beat to death awhile ago, there were 3 different transfer cases offered. The rockwell, dana20 and the NP205. The NP205 had two different shifters (70 and 71-72).