The transmissions are identical except for the bell housing diameter being bigger on the TT and the speed sensor being geared for TT. You can swap parts just fine. Just have to open up an NA bell housing and shim the starter a bit if you want to run a TT flywheel in an NA trans.
-Dan
"Capitalization is the difference between helping your Uncle Jack off a horse, and helping your uncle jack off a horse." "'she' also likes to swap since I think I am going to need to give her to woody again." - Dvlhntr "full alphabetic boost mode" - ChristopherTheOne " Purrs like a sexually satisfied black panther." - BigTDogg "Two oil eating, angry, spinning triangles of death." - turtleboy on rotary engines