I have a JI Edwins Issaquia , Washington two speed aluminum gear box which I am assuming it is a Hi /Lo box . I know nothing about this box except it works in both sides when turned by hand and shifts up and down with the handle . This is mounted on one of my Caper Cycle minibikes and I was going to do some work on it soon and was wanting more information on this gear box as to how it works if you know anything about this box please tell me . Thanks