Original stamping?

[Fast67VelleN2O]

That transmission is September of 1969, making it a 1970 transmission, not an early 1969 as listed. The stamp on that case is P9P10 P= Muncie, 9=1969, P= September, 10= 10th. Here is a 69 stamp comparison from a Camaro Muncie that I recently sold. I don't know why that transmission listed isn't stamped "C" for M22, as it should being a 1970 trans.

[crash]

P9P10 Muncie build decodes as...

P---Muncie assembly plant
9---1969 model year
P---Sept.
10--10th day of Sept.
This is an early build trans, Sept. 10th of 1968 for use in a 1969 model year car...
It has no A-B-C ratio designator because that didn't start until the end of Sept. 1968 calendar year, a little more than a month later... Hope this helps... Crash

[COPO]

That's a common decoding mistake with Muncies. As Crash said, the number after the "P" is model year of the car and not the calendar year of the trans assembly.

[dechev]

Thanks for the additional information about this trans stamping. Would any of you venture an opinion as to whether the stamping is original or is it a restamp?

[COPO]

Looks original to me.

[crash]

Looks original to me too... Crash

[LITTLE TOMMIE]

so i can understand this, how is the P in this stamping SEPT
P---Muncie assembly plant
9---1969 model year
P---Sept.
10--10th day of Sept.

[RamAirDave]

[ QUOTE ]
so i can understand this, how is the P in this stamping SEPT

[/ QUOTE ]

Its just how they were done:

http://www.camaros.org/drivetrain.sh...missionNumbers

[Steve Shauger]

[ QUOTE ]
so i can understand this, how is the P in this stamping SEPT
P---Muncie assembly plant
9---1969 model year
P---Sept.
10--10th day of Sept.

[/ QUOTE ]


He said "the NUMBER AFTER the "P" is model year. You decoded it perfectly above. As has been stated the 9 represents the model year vehicle this was used in , Not the calendar year it was built.

[HiHorse]

[ QUOTE ]
P9P10 Muncie build decodes as...

P---Muncie assembly plant
9---1969 model year
P---Sept.
10--10th day of Sept.
This is an early build trans, Sept. 10th of 1968 for use in a 1969 model year car...
It has no A-B-C ratio designator because that didn't start until the end of Sept. 1968 calendar year, a little more than a month later... Hope this helps... Crash

[/ QUOTE ]
I have a Muncie with build date P9R03B, this one is Oct 69 based on the VIN derivative.