got a 91 civic where dose the gear oil go in at there is no where on the tran to put in to

 

If it's a manual, on the right side of the tranny near the back there is a big plug with a 17mm hex on it. Park the car on a level surface and fill until it overflows at that hole. Use either Honda MTF or 10W40 motor oil. Do not use 90W gear oil.

 

http://fourthgenhatch.net/trannyfill.html


just incase you want some pictures and more information...