I was hoping someone could identify the missing sleeve in the picture below and provide an intellegent name so that I can find a replacement. My AX-5 (1993 YJ 2.5L) is leaking gear oil. I thought it was coming from the input shaft, but when I dropped the transmission, I realized it was coming from one of the holes. The picture shows the front of the transmission with the clutch housing removed. All the other holes have some sort of seal or sleeve in them except for the leaky hole. It only has a post, plug or shaft of some sort. It'll all make sense someday after my first rebuild, perhaps. Hopefully, that's a year or more away.