I put a new automatic transmission in but it still won't go into overdrive. Is there a fuse or circuit breaker for the transmission?

Hello, where did you get this replacement transmission from? If it really is new or remanufactured then they ought to have a technical service department to help you. If you put a used transmission and you probably got a bad one., or you haven't adjusted the kick down cable correctly. There is no fuse for the overdrive.