Muncie Identification

Reading Serial & VIN Numbers

Muncie 4 speed serial numbers begin with the letter "P". The serial number is a date code. The code will tell you which particular year the transmission was built for.

Serial numbers from 1963 to 1966 included only the month and day. P0101 would indicate January 1st.

In 1967 and 1968 the serial number got a year designator and a letter designator for the month such as P8A01, meaning January 1st 1968.If you have a Muncie dated with a December build date it was actually built the prior year. An example would be the date code P8T13. The T stands for December and 13 is the day. This is for a 1968 production car. This means the Muncie was assembled December 13, 1967 for the 1968 model year. To confirm this simply look at the VIN number. It will usually begin with a 18S101350 or a 28N12950. The VIN number will usually be a low number.

1969 to 1974 Muncies got a ratio designator at the end of the serial number. An example would be P4D23B. This equates to April 23, 1974, M21 ratio.