STO/U boxes are free, up to 6 ratios. I see no requirement in the rule s(dec fastrack) that the box be OEM. sequentials (A'La XTRAC) have a weight penalty.
STL boxes can be in-brand swaps "in their entirety" and/or "retrofitting OEM complete gear sets"
so it depends on which ST you want to play in. any ratios in U, like the prof is looking at, any VW/Audi trans or gearstack in L, so long as the ratio set is as delivered in some car from the family in the USA.
tGA - would chevrolet/pontiac/etc... be in the same family as toyota as toyota has built so many GM cars (FWD nova, GEO/Chevy prism, Vibe) or just those cars count as toyota? could I run a 3.0L toyota V6 in a vibe? Or maybe a honda 3.0L V6 like that used in a saturn vue in a cobalt or Astra? Taking it further - could I run a honda 4cyl in a toyota as they both make motors for GM thus are "all GM"???
generally speaking, I wouldn't say that honda or toyota = GM, but The automotive world is incestuous...
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