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By 55blacktie - 2 days ago
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I'm replacing the Fordomatic in my 55 Tbird with a C4 transmission. I know that the C4 and 57 Tbird speedometer cable and driven gear are the same, unlike those used in 55-56. I know there is precious little space to work in, so I will be installing the cable in the C4 transmission before the engine & transmission are installed. Here's my question: If I use the C4 speedometer cable & driven gear and install them while the engine and transmission are out of the car, will I need to use a cable angle drive as was used in 55-56?
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By paul2748 - 2 days ago
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When I went to a C4 in my 56 Bird, I installed the engine and trans before installing the speedo cable. Because of the lack of room, I used an angle drive. In my opinion, there is not enough room to even use the cable installed directly into the trans as the bend w/b to sharp, but if it would fit it may rub on the tunnel. Possibly, it may work.
Because of the way the angle drive is made, I had to get a custom cable . The cable end for the angle drive had the same type of connector as the end for the speedo.
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By 55blacktie - 2 days ago
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paul2748 (7/1/2026)
When I went to a C4 in my 56 Bird, I installed the engine and trans before installing the speedo cable. Because of the lack of room, I used an angle drive. In my opinion, there is not enough room to even use the cable installed directly into the trans as the bend w/b to sharp, but if it would fit it may rub on the tunnel. Possibly, it may work. Because of the way the angle drive is made, I had to get a custom cable . The cable end for the angle drive had the same type of connector as the end for the speedo.
Did you use the original Fordomatic angle drive & driven gear? Source for custom cable?
Thanks.
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