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. These numbers are located on the servo. Sort by Oldest first Oldest first Newest first Most reactions. It could have been used across the entire production run. Using this part to ID the model year won't work. I found this website useful for seeing the difference of the generations. C4 Identification and Selection.

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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 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. This tag contains all the necessary identification information and if not present, use the following visual techniques: the C4 measures between 17 and 18 inches long and has an almost-square pan with 11 bolts. The pan measures by-9 inches. The part number location varies on C4 transmissions and is used to determine year of manufacture. The number is normally four-digits long, consisting of both numbers and letters. C5SP, for example, decodes as a transmission.

Ford c4 transmission identification

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. The degree Fairlane small-block V-8s followed in The MX was a large-case automatic and the FX was small. Although these transmissions were rugged and dependable, they were heavy, complex, and not easily adapted to performance applications. This is when Ford engineers developed lightweight aluminum-case automatic transmissions for an exciting lineup of automobiles that arrived in the s. The 3-speed C4 Cruise-Omatic was introduced just in time for the model year.

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Now I'm sure you're wondering how to find the C4 that you want. Still waiting for my engine to be completed. The tooth bell has those same ribs, except they stop about 4 inches or so before the transmission case. In , Ford gave the C4 a larger input shaft and clutch hub measuring. 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. Sort by Oldest first Oldest first Newest first Most reactions. Since our previous restorations have all been 4 speeds we don't have much experience in this particular item. This transmission is not desirable at all because of internal differences, like a weaker input shaft and oddball valve body. Woodchuck Replies. It is most often found in 70's trucks and vans. Explore Our Forums. Sign up. For now, forget the tag Top Contributors this Month View All.

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.

Case-fill C4 transmissions are light-duty; the bellhousing bolts to the front pump instead of the main case. Added to cart! What I really want to know is what casting number should I be looking for that would be correct for this car. The — C4 was known as the Dual-Range Cruise-O-Matic due to its dual-range shift pattern, which included two driving ranges based on shifter position. This C4 Dual-Range is an early V-8 unit with a five-bolt bellhousing. For example: D7SP would mean that the transmission is a model. This valve body was used from to We'll start off with the case fill model. AOD flex-plates are tooth 50oz imbalance, and 28oz imbalance flex-plates were made in both and tooth versions. The angle between the bell housing and transmission case is much less than a case fill C4, maybe only 60 degrees or so. From to , the C4 had a split-spline count. Now what is the difference between the pan fill and the case fill C4's you might ask? That depends on several things. Bell housings came in both small and tooth large bell housing sizes, with matching flex plate sizes.