Do all Ford FE motors have the same bolt pattern on the bellhousing end, or did they change about mid 1965? I'm looking for a FE automatic transmission(C-4/C-6/FMX) that came with an Over Drive(possibly mid 1980s or later?). Over on the HAMB I've learned that(with minor modifications) certain FE bellhousings can be mated to an ECU('52-'57 Lincoln) block. Did any FE automatic transmission come from the factory with an OD?? HELP!!! Thank you for any info!