Ford c4 transmission identification

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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.

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. In , the C4 got an upgrade. The input shaft and front hub were strengthened by enlarging them to 26 spline, increasing the input shaft diameter, but also making its torque-converter and input shaft non-interchangeable with the older 24 spline C4's. The through case fill C4's also came in and tooth bell housings, but a new variant was created, the pan-fill C4. Sporting a tooth bell housing and flex-plate, and a differently designed bell housing and transmission case, it was put mainly into trucks during its usage.

Also, by using the tooth bell, you can re-use your old AOD flex-plate. From tothe C4 had a split-spline count. Inpornocuentos C4 got an upgrade.

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.

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.

Ford c4 transmission identification

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.

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We'll start off with the case fill model. Recommended Communities. AVS Forum. All you can tell is that it was cast in Does this mean the transmission came out of a '66? This is when Ford engineers developed lightweight aluminum-case automatic transmissions for an exciting lineup of automobiles that arrived in the s. Log in. Also be careful, there are some 4 and 6 cylinder bell housings out there, the starter is at approximately 10 o'clock, looking at the trans from the back. Recommended Communities. AOD flex-plates are tooth 50oz imbalance, and 28oz imbalance flex-plates were made in both and tooth versions. At first glance, the 2-speed automatic looks like a cast aluminum FX or MX case. The only "special" flex-plates ones never made by Ford are the 50oz imbalance tooth flex-plates. Are there any differences between a 66 and 68 C4 Tranny? Here is a case-fill with a tooth bell note the ribs go all the way down to the transmission case : Here is a case-fill with a tooth bell housing: Here is a case-fill with a tooth bell housing note the lack of a flare at the bellhousing : Here is another shot of a case-fill with a tooth bell, with TCI servo and extra capacity pan: The pan fill transmission is quite easily identified by its pan-located dipstick, and flared case where the bell housing bolts on.

The Ford C4 automatic transmission, manufactured between and , is easily identified by sight, measurement and Ford part numbers. It is a two-speed automatic, used extensively in both passenger cars and trucks. All C4s came with an identification tag, attached to the transmission on the passenger side.

Tony K. The pan-fill C4 really is more about strength for heavy-duty applications like full-size cars and trucks than anything else because the bellhousing bolts to the case outside the pump housing. The build date is February '65 so I know it should start with C4 or C5 but is there anything else that would be specific to Mustang rather than Falcon, Galaxie, etc.? For HO 's, you will need a 50oz imbalance flex-plate in whichever tooth count you choose for your bell housing tooth bell needs a tooth flex-plate, etc Also, the output shaft at the tail section where the slip yoke goes is 28 spline. In Ford introduced the C5 Select-Shift transmission, which was nothing more than a C4 with a locking torque converter to improve fuel economy. Explore Our Forums. First 2. Only real way to tell is to read the Foundry Casting numbers on the side of the tranny Later versions had a transmission fluid cooler in the radiator.