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01-01-2022, 06:59 PM | #1 |
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Join Date: Aug 2020
Posts: 441
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55-57 Tbird Fordomatic to C4 Conversion
Happy New Year!
If anyone out there has replaced their 55-57 Tbird fordomatic with a C4, which year C4 did you use? |
01-01-2022, 07:18 PM | #2 |
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Location: SoCal
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Re: 55-57 Tbird Fordomatic to C4 Conversion
I would like to know that too. Plus, how hard was it?
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01-01-2022, 07:51 PM | #3 |
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Join Date: Aug 2020
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Re: 55-57 Tbird Fordomatic to C4 Conversion
Length of transmission cooler lines to radiator?
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01-01-2022, 07:58 PM | #4 |
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Join Date: Oct 2014
Location: NE Iowa
Posts: 1,664
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Re: 55-57 Tbird Fordomatic to C4 Conversion
If you could find a good transmission guy, Fordomatic can work great and save the money of the adapters and fabrication. If just asking about the C4, they improved until the end in 81. Any 40+year-old transmission will need seals and gaskets. Many people say to just go to the AOD but have driven many for years and never felt they had the Swiss clock timing of earlier well-adjusted transmissions. All of the above is just personal opinion.
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01-01-2022, 08:29 PM | #5 |
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Join Date: May 2010
Location: Allentown, PA
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Re: 55-57 Tbird Fordomatic to C4 Conversion
Call Flat-O-Products---503 364-2934
He will give all info you will need and parts-- Good luck |
01-01-2022, 08:53 PM | #6 |
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Join Date: May 2010
Location: Midland Park, NJ
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Re: 55-57 Tbird Fordomatic to C4 Conversion
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I don't know if they had both a case mounted full tube or a pan mounted fill tube in those years.. I my opinion, the case fill is better. With that said, I have an earlier (68) C-4 in my 48 street rod. A lot of miles and years on the trans and only had one problem with it after using it for 15-18 years..Still going strong. Another thing to look for - the shift arm on the trans. For a Bird, get one that has the arm pointing up - it originally would be for a floor shift.
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48 Ford Conv 56 Tbird 54 Ford Victoria |
01-01-2022, 09:48 PM | #7 |
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Re: 55-57 Tbird Fordomatic to C4 Conversion
Thanks, Paul, you answered my question.
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