Actually with a Tacoma you don't even need the adapter. All you need is a doner A340F from a 1996-2002 4WD Tacoma or 4Runner to get the factoy t-case adapter and output shaft. I needed the Inchworm adapter to use the older right side drop transfer cases.
I know this quote is a bit old but I had a question. Should I take the above statement as, you could use a 1UZ/Taco A340F/Marlin adaptor to gear driven case.