Thunderbird tranny…

If my thinking is right I have the Cruise O’ Matic three speed transmission. This is an earlier cast iron version that is prior to the more known C4 tranny. I’ll need to get under the car again and try to read the part numbers for verification. When I get back into town I will to see if I can really tell if the tranny is shifting through the gears as the speed increases. It’s been bugging me that there is no distinct change in torque as expected. 

I’ll check the following:

  • Vacuum line from the intake manifold “T” is good all the way down to the governor/modulator or control valve as Ford calls it
  • Linkage from carburetor to the transmission is there, used for the “kick down” function when passing cars or need of acceleration 
  • Check for the F4 type transmission fluid, while the car is running 

I’ll research more as the time gets closer. 

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