I have been unable to locate reference info. on the automatic trans. production ID plates. These made in France has an ID plate that indicates production info. located on the left rear of the trans. I have one that indicates 3GB which is from a 2003 or 2004 I believe. I have another that indicates 4GL; I'm not sure of the year. I believe it is from a 2005 or later 3.6. Any one that can lend some expertise on this would be appreciated. Thanks, Den.