The difference between the two trannys is the tranny pan. Here is a pic of the 727 pan -----Original Message----- From: luxor2 [mailto:luxor2@xxxxxxxxxxx] Sent: Saturday, March 20, 2004 7:11 PM To: 1962to1965mopars@xxxxxxxxxx Subject: 727 or 904 Hi folk Please excuse this obvious question but what is the easiest way to tell the difference between a 727 and 904? The service manual for 1965 B bodies shows the 727 is a slip yoke and 904 is a trunion drive shaft for this year. I have a big block (500 MPcrate motor). When I pulled the trans, it has a trunion. My guess its a 727 since it is a big block and it was swapped at some point. Can a 904 work with a big block? I did not see any adaptor plates under there. Where are the serial numbers that I can reference? Thanks in advance for your help. As for the thread about 1st Mopars. This is my first, and thank to this group, I learn more and more each day. Thanks everyone. Ray 1965 Satellite [Non-text portions of this message have been removed] ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! '62 to '65 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html. [Non-text portions of this message have been removed] ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! '62 to '65 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html. b7yoMz.