Editing Powerglide (section)

==Identification==
General Motors transmissions have markings to identify;
*Casting numbers on the case and extension housing.
*Powerglide transmissions were cast with the word Powerglide along the body
*Date Casting Codes
*Assembly Date Code Stamping - can be stamped anywhere...
*Chassis VIN Number stamping or "source serial number"- beginning in 1962

Prior to 1967, transmission ID numbers contained the plant prefix code, month and date of production (expressed numerically) and a shift code (D = Day, N = Night).  From 1967 on, the ID number contained the transmission type or plant prefix, Date (coded below) and a shift code. The constants in decoding the trans ID number are the date the transmission was produced.
*Pre-67 Example: C213N  - (C = Cleveland Powerglide, February 13, Night Shift)
*Post-67 Example:  P9E03  - (P = TYPE, 9 = year (1969), E = Month, 03 = Day of Month)

The transmission identification number or source serial number (chassis VIN) is usually located close to the transmission code. This number will contain a division identification number, the model year, and the assembly plant and production sequence (last 6 digits) of the [[vehicle identification number]] (VIN) stamped onto the transmission.
*Example: 19N500001<ref>[http://www.nastyz28.com/chevy-transmission-identification.php Transmission identification]; Retrieved April 27, 2011.</ref>