Put the speed sensor back in. It has a seal on it or if its in, change the seal. There isn't anything I've seen to plug it other than what's supposed to go there.
You need to fill/drain the trans with a pump if your not pulling the trans out. There is a plug in the side of the case. Fill it until you can just feel the fuild with your finger just below the bottom of the hole.
You need to fill/drain the trans with a pump if your not pulling the trans out. There is a plug in the side of the case. Fill it until you can just feel the fuild with your finger just below the bottom of the hole.