I realize the best way to determine gear ratios is by removing the covers, but isnt there another way? I thought I read somewhere that you can rotate the yoke and count the axle spins to get a rough guess. This could be backwards or completely wrong that is why I am asking here. Is there a way to guestimate gear ratio without taking it apart? Something that could tell me a difference from say a 4:10 and a 5:13? I realize it wont be perfect unless the covers are removed but hoping I could get an idea before purchasing. Thanks for the help and hopefully answers to my questions.