I need to find out where my transmission leak in my 88 iroc-z is coming from. I just changed my engine in it and now when since I just finished it I drove it and it drove great but when I stoped at a store I looked under the car and I could see a big transmission leak. It only leaks when I stop the car and shut it off. It leaks about a half a pint when I drive about 5 miles to a store and and five miles home. I changed the filter and gasket and it did help a little but it still has a bad leak. So does anyone know where the leak might be coming from.