if you have an AT car, you need an AT tranny. If you have a MT car you need a MT tranny. if you are putting it in a 88 - 91 civic or a 90 - 93 integra , then use a cable tranny, if you are putting it in a 92-00 civic or a 94-01 integra, you need a hydro tranny or a cable tranny with a hydro converter. If you need a hydro tranny, I have an extra one im trying to sell. email me.