Marlin, This is what I have figured so far. Get a r150f tranny from a 1996 and newer toyota, get a bellhousing from a dakota with a 2.5l and ax15 tranny. Then everything should just bolt right in. Do I need to change the clutch disk though or pilot bearing? Also can I change the gears of this tranny to 5.15. Will my 231 tcase bolt up to this tranny?