727 or 904

thank you guys for all the responses. I have a 727 in my car. it used to have the 904, but it was dying and i dont know much about tranny's. A guy told me the 727 was what i want anyway and it was $750 for him to put in a rebuilt one. so i went for it. I would like to have a 4-speed some day though, i ilke shifting

Put a manual valve body in it then you can shift when you want to.