I believe that is the Build Number from the French Company of Brissonneau & Lotz who built the GT bodies before they were shipped to Germany to be fitted with the running gear. Some one will say if it is not ......fredopelgt said:What are the Numbers and letters Stamped on the diagonal attached to the support behind the rad, mine has U7164 and below that BB or RR
Its only money that keeps your GT running
GT.Com very efficiently emails me when there are replies to threads I have posted to - so thanks for the reply.fredopelgt said:Sorry GTJIM, that I haven't replied to your question the answer is colour code is 404 with interior 721.