The 4 large protrusions are for a jig the mounts the transmission in a vice for servicing. I havn't been able to determine what the large protrusions at top rear are for. I suspect they are for use in one or more European cars but not needed for Mopars. The vent at the top of the trans has to go, there is a kit available to make the vent horizontal rather than verticle. Some of the wire loom bosses need to go but dont worry to much about the ones near the front of the trans. It looks like the bosses for the neutral cable can stay but mat need to be cut down a little.