Ford c4 transmission identification

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Literally millions of Ford cars and trucks were equipped with C4 and C6 automatic transmissions between the introduction of the C4 in and the replacement of the C6 in the s. These purely mechanical no electronic controls automatic transmissions are still popular with racers, hot rodders, and restorers today due to their simplicity and low cost. Cores can be purchased and rebuilt to suit the needs of a specific vehicle for much less than a comparably rebuilt modern overdrive automatic transmission with electronic controls. But, they lack the overdriven gears and lockup torque converters the newer transmissions rely upon to boost fuel economy figures. Ford had a fundamental challenge to its direction and future in the late s—how to shed a stodgy image and dated technology. This effort began with a new generation of skirted-block FE-series V-8 engines in In , Ford introduced its lightweight-iron Falcon and Comet sixes.

Ford c4 transmission identification

Log in. Sign up. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. I'm trying to find out what year this C4 is that I have. The numbers I have found so far are on the left side of the case, right above the shifter lever. Also there are 2 circles side by side with numbers stamped inside those circles. These are right above that DODP number. Does that mean anything to anyone on here. I want to buy a rebuild kit for this. Also, the output shaft at the tail section where the slip yoke goes is 28 spline.

Does that mean anything to anyone on here.

Log in. Sign up. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. Since our previous restorations have all been 4 speeds we don't have much experience in this particular item. The transmission in the car is marked C6DPA.

The C4 is a transmission that was produced by the Ford Motor Company starting in It was engineered to work with rear-wheel drive vehicles. The transmission stayed relatively the same for its first 5 years of production. In the engineers at Ford gave it its first design changes. These changes gave the C4 upgraded internals capable of handling more power and increased its durability. The C4 was used in light duty vehicles such as the Mustang, Torino, and Falcon. It also was used in the F until production ceased. It still is a pretty popular transmission with bracket racers due to its pound weight. Regardless of model year, the C4 can have a dipstick that goes directly into the pan or the case.

Ford c4 transmission identification

This article should give you a better grasp on the different types and uses of C4 transmissions. C4's were produced and used in production cars and trucks from to , when they were replaced by the three speed automatic transmission with lockup torque converter known as the C5. In this timeframe there were several versions, each with significant differences that, depending on your application, might make one better for you. From through , the C4's made had a 24 spline input shaft and front hub assembly, and with the lower spline count came a slightly smaller diameter on the input shaft. This year range is still desirable, as its case is identical to the case fill C4 transmissions, so the old 24 spine parts can be upgraded to 26 spline. However, the valve bodies in the transmissions are different. The valve bodies fall into 4 different groups. Keep this in mind when selecting a C4, since the valve bodies cannot be interchanged between year ranges a valve body wouldn't work on a C4. Bell housings came in both small and tooth large bell housing sizes, with matching flex plate sizes.

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When I saw this fox body I knew I had to have it, just wish I could have gotten it complete instead of a roller. Sign up. In , Ford introduced its lightweight-iron Falcon and Comet sixes. Log in. JavaScript is disabled. Does this info tell me that it is in fact a C4. The only way to tell what car it might have been used in is to look at the data tag bolted to the servo case. JavaScript is disabled. It is most often found in 70's trucks and vans. For , Ford introduced its own heavy-duty C6 3-speed automatic transmission for high-torque applications behind large-displacement big-block V-8s. That should tell most of the story The build date on the car is Feb. As mentioned before, the case fill C4 has a near 90 degree intersection with the bell housing. This is an older thread, you may not receive a response, and could be reviving an old thread.

Seeing as we don't know a heck of a lot about Ford automatics, we abducted a variety of transmission experts and interrogated them for the following information.

Does this info tell me that it is in fact a C4. AndyEckel 92 Replies. In this timeframe there were several versions, each with significant differences that, depending on your application, might make one better for you. Obviously this is not desirable either. At a glance, the Dual-Range valve body looks identical to — The only way to tell what car it might have been used in is to look at the data tag bolted to the servo case. The bell housing bolts onto the case through the pump bolts, so there are only one set of bolts inside the bell housing. JavaScript is disabled. Those are just OTOH. Using this part to ID the model year won't work. This case is also ribbed for strength. Log in. The guy I got this from said it was from a 69 Mustang, But someone has written the word Maverick in chalk on top of the case. Figuring out what size bell housing you're dealing with is also quite simple.