can someone please tell me if bell housings are interchangeable on the A4LD. From a 4.0 to a 2.9. I thought maybe I could take the bell housing off an A4LD from behind a 2.9L and switch with an A4LD from behind a 4.0L then put it back behind the 2.9L. I am working on a 1990 Ranger w/ 2.9L. I hope this make sense. Thanks!