welcome to the forums. from what I am reading ? ^^^ your headed down a bad road !. dont half way fix it, and dont try to change the gearing !. if you dont know what your doing ?, then dont mess with what works !. fix it back like it left the factory, and leave it at that. do not start '' hacking '' things up !, if you do ?, you wont get much help here, all you will do is waste our time.