Ah, gotcha. In that case I'd ditch the 4L30E altogether as it's borderline in stock configuration as is, and there are so many other options out there. When we had the '04 Axiom (I know I keep coming back to that) I really liked the Aisin slushbox as it was much beefier, plus the selectable TOD was nice. Of course if you drop the TOD a whole new world opens up...