someone told you right there is a breather vent that needs to be tubed up to a higher level to keep the H2O from getting in there. However I have never had a Jeep Auto so some one else will need to field this one. Good Luck tug
There's more to it than that, I believe there is a larger gap in the bellhousing near the top that needs sealed up. Then you can drill and tap for a vent tube.