Where do you add tramission fluid - 1994 Nissan Pickup

If this is a stick (manual) shift, you have to get under the truck. There is no dipstick, like in an automatic. So, on level ground, with a cooled transmission, put down some cardboard and have a rag handy. Get the bolt-type, or allen wrench-type plug out of the side of the tranmission. This is where you check or add tranny fluid. Place your finger into the hole up to the first knuckle (the one just past your fingernail). You should at least feel fluild at the tip of you finger, but close to the bottom of the threaded plug hole is what I remember. Also remember to check the clutch fluid (if it is a manual), it is up under the hood just in front of the driver, behind the brake fluid reservoir. In fact it looks like a smaller version of the brake reservoir. Maggie

Through the dip stick tube ...