For '67, the C4 became the "Select-Shift" with a conventional P-R-N-D ... the 26/26 is your best option, available from TCI Automotive. The FMX is a standalone cast-iron three-speed automatic ...

B&M, TCI Automotive, and Performance Automatic ... A tailshaft governor contributes to shift control. The C4, C6, and FMX transmissions employed throttle valves, or vacuum modulators, to control ...

Likewise, the shifter ... and C4 trans greatly helped here, meaning no trans tunnel mods were necessary, though the engine did have to be mounted several inches farther forward than the TCI ...