I could some help understanding a fluid leak around the shifter on my teammates IT7 car. He installed a used 82 tranny and there is a pretty big fluid leak around the shifter boot. Pulling the shifter reveals no gasket where the shifter attaches with the three bolts. Is there a gasket that is supposed to be there? Is there something else that prevents fluid from leaking there? I really don’t have a very good understanding of this. TIA