The t-case you have is chain driven. The way I understand it, you'll need this setup here:
![](http://www.marlincrawler.com/images/mc09b.jpg)
Basically, you have your transmission, Marlin adapter (Tacoma tranny to the front of the mini/4cyl t-case), mini/4cyl reduction box, Marlin adapter (rear mini/4cyl reduction box to Tacoma t-case), and then the Tacoma t-case.