The Auto tranny on the 3.0 has a automatic transfer case with its own valve body and clutches which cannot be dualed
I just finished a conversion with an inchworm adapter and swapped in a gear drive case with Marlin 4.70 gears
http://www.tacomaterritory.com/forum/showthread.php?t=105227&page=2I was looking here to see what it would take to do a crawler in my T100 auto.
It's a foward shift chain drive "righty" with a 23 spline output , but the case is exactlly like a Taco trans.