I need help in identifying what valve body is installed on my C4. I'm upgrading my 2speed column shift to to a C4 column shift and I need to make sure what valve body is intalled in the C4 in order to match the column shift indicator. If I drop the pan what should I be looking for to identify which valve body is intalled? This will be much easier before I swap the transmissions. My car is a 63 Comet, S22 Convertable, 260 V8 Thanks, More info follows: In the beginning, the C4 was a dual-range automatic transmission, meaning you could drive it in two individual ranges depending on driving conditions. For most of us with '65-'66 Mustangs, that means driving on the little dot or the big dot on the transmission selector-big dot for normal driving and small dot for Second gear only in ice and snow. It didn't take Ford long to figure out this idea didn't work well because not enough people understood it. Some chose to drive on the small dot in error, never leaving Second gear and burning up the transmission. Beginning in 1967, Ford made the C4 more like other automatics of the period, with a more traditional P-R-N-D-2-1 shifter pattern, ditching the dual-range idea altogether. This made the C4 more user-friendly. From then, the C4 experienced a lot of refinements that made it durable, and it remains the simplest, most reliable Ford automatic ever. Many late-model Mustang racers have come to know the C4 as a terrific automatic transmission for racing, even choosing it over GM's two-speed Power Glide automatic for some racing applications. As you might expect, the C4 evolved throughout its production life. The first significant change was the Valvebody when the dual-range feature was eliminated for 1967. You can install a '67-and-later Valvebody in a '64-'66 C4 because the Valvebody is the only change. With the Valvebody change also came changes (detent positions) in the shifter linkage. These should be addressed when swapping by using the proper indicator.
C4 Valvebody ID I forgot to list my C4 Transmission: Case Filled C4 with 24-Spline input, and 157 tooth 5-bolt Bell
Look at the servo covers for an ID tag - If you can't find one then look for two circles just above the shift lever on the transmission. The circle furthest from the front (on the right side looking at the shift lever) should have two numbers in it. The nubers are the month and year it was cast. If that fails (rare) then there is a tag on the valve body which can be used to identify the valve body. Paul
