Newer Ford part numbers use a slightly different part number decoding chart. Performance/Special Vehicle Operations (Incl Holman Moody)Įmissions, Economy and Special Vehicle Engineering (Muscle Car Parts) General Parts/Electrical and Electronics Division
#FORD TRANSMISSION NUMBER DECODING CODE#
Prefix Code Chart 1st character: Decade code Below is a table including the prefix code chart of early Ford part numbers. In addition to the C/M transmissions their are several other automatic transmission that can be adapted including the FMX and C4.The first four alphanumeric characters represent the decade the manufacturer released the part for production, the vehicle line the manufacturers originally made the part for, and the Ford engineering department( engine, body, chassis). Some of the C/M transmissions are easy to convert by changing the shifter lever, look for the correct bell housing bolt pattern and output shaft length. 1963 – PBC – R & M, PAU – L & M, 6 Cyl engines.1961 – PBC – M, PAU – L & M, 6 cyl, PBW – K, PBY – G & H 292 engines.PBW – G, PBY – E & F were used with 292 engines. 1960 – PBC – K, PAU – J & K were used with 6 cyl engines.PBW – C & E, PPY – C, E, D & F were used with 292 engines. 1959 – PBC – F& H, PAU – G, H, J & K these were coupled to 6 cyl engines.The following C/M transmissions can be found in trucks: 1959 – PAZ – L & T, PBM -J & N, PBL – U & V, PBB – M,.1958 – PBM – D, PBL – E & F, PBB – M, PBL – U & V.The following is a list of C/M transmissions I.D. 1963 was the last year the C/M transmissions were used. In 1963 the C/M reappeared in the 1963 Thunderbirds it had a vacuum modulator to promote a smoother shift. Most of which could be adapted to the 1955-57 Thundebirds. The following transmissions were available FM, FM 2, FX light duty, MX heavy duty. In 1960, 61, 62 the C/M transmission was not available. Top holes 8″ from center to center, bottom holes 11″ center to center and bottom to top 5 5/8″ center to center. The shifter lever must be correct, the output shaft housing must be the correct length and the bolt pattern to the bell housing must be as follows. Most if not all can be adapted to the 55-57 Thunderbirds. During 1958/59 their were twelve different applications of the C/M transmission. The first Cruise-o-matic (C/M) 3 three speed dual range transmissions were built in 1958. If the tag is missing these letters are some time cast into the transmission case.The following identifications letters apply to the thunderbirds: The identification tag just aft of the shifter lever reveals the application for the transmission. The hole for the speedometer cable housing and gear angles up into the housing on the 1957 models.
The hole for the speedometer cable housing and gear angles down into the housing on the 1955/56 models. The 1955/56 type is pictured on the right. The 19 models shared the same housing for the air cooled as well as the water cooled transmission. The 7 Thunderbird automatic transmissions had two different extension housings. The output shaft extension housing should be 16 3/4″ long. In most cases modifications are required, the shifter lever (P/N 7A256) must be changed and in some cases the kick down lever must also be replaced. There are fifty eight configurations of the Fordomatic transmission built between 19 that could be adapted for use in the 1955 thru 1957 Thunderbirds. The identification of the Fordomatic transmission can be rather confusing.
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