We have over 12 e-books on developing and making your own go kart. The most prominent questions are those pertaining to drive line calculations. Go Kart Building 201, 202, and 203 are in depth books, complete with charts and computer programs. Please avail yourself of these products to answer your drive line questions.
Also be sure to look at our Go Kart Guru Blog which also has many articles about go kart design and fabrication.
Another Important Note: A few have been leaving questions but incorrect emails. Please double check your email address, because responses are typically in one day or less.