You could just smooth it out , and grind the lip of the cover so it sits above the bottom edge of the diff cover mounting area . Then it would just slide over stuff . I got hung up once with my 12 bolt pretty good , but never lost fluid because the cover couldn't get grabbed . But I wouldn't remove much of the housing , just smooth it /forums/images/graemlins/k5.gif /forums/images/graemlins/k5.gif