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Transmission: |
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C4 3 speed automatic
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Sources: |
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1973-1977 Broncos as well as several other Ford cars and trucks from 1964-1981
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Identification: |
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Unlike the other transmissions in this article, the C4 has a removable bell housing. Also see the transmission pan image above for identification.
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Adapter required? |
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Because the C4 was a stock option on Broncos an aftermarket adapter isn't needed if you can find a stock unit. If not there are aftermarket adapters available.
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Pros: |
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This is the simplest, most straightforward and least expensive automatic transmission option because it was originally available on 1973-1977 Broncos. Find a donor Bronco with a C4 and transfer parts. Although the C4 was originally designed for smaller V8's it has a strong aftermarket following and can take a lot of abuse if built properly.
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Cons: |
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The C4 has a fairly high first gear without the modern advantages of overdrive. In completely stock form the C4 can be a little weak for high output engines.
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Cost: (Approximate) |
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Transmission: $150-500 used and $500-1400 rebuilt (expect to pay near the upper end of this range if you are getting your C4 out of a 73-77 Bronco.
Adapter kit: $500-550
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Drive Shaft Mods: |
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Total transmission is approximately 1.5" longer requiring some drive shaft modifications.
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Bell housing: |
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The C4 came behind small block Ford engines and will bolt up to your 289-302-351 engine.
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Modifications needed: |
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Very few modifications are needed if using a C4 out of a Bronco.
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