I asked this over in the FF03 forum but maybe this would be a good place for an answer as well. On the FF03, what is the lowest gear ratio you can get and still run the factory gear cover, as per TCS rules? I have a 72t 64p spur but the smallest pinion that will work with that is a 58, leaving it at like a 3.2 or so. of course with this big of a pinion the cover doesn't fit, or even come close, so what are you guys running?