I'm working on my '63 Dodge 330 resto, and replacing the /6, auto, with a 440, and a slip yoke '65 727 transmission. Are the transmission cross members and mounts different for the two assemblies, or is it just the mount ? I'll need to start looking for parts if they are in fact different. While on this subject, does the same scenario apply for the '65 Coronets also ? Thanks for any, and all input on this...