I can see 440Source trying to save money by offering one gear ratio. It does come bare so anyone can make your own. 1350/3.55 I think would be the most street strip.
I don't understand......are they claiming that the housing itself can only accommodate one ratio and they are taking a survey of which one is most desirable OR are they asking about ratios to know which ratio of gears to offer?
I don't know why a carrier would only allow for one single ratio. I do know that the taller the ratio, the larger the pinion gear and the clearance there is tight.