Sounds like you have it under control. I wouldn't worry to much about the clutching if you gear it down some for the 2" track If you gear it down the clutching should not be much of an issue. I am running 2.05:1 in my Tcat. (BTW went from a 136 to a 151 by installing a 03 MC rear skid, so I know what you are going through) I am running 21/43 gears still able to get to 100 but pulls the bigger track better, accerates hard out of the hole.