How do you tell if your transmission is numbers matching?

[kna4977]

I notice there is a tag on the right rear of the transmission, but I don't know what the numbers on the tag indicate. Is there any relationship between the serial number of the transmission and that of the vehicle itself?

 

[Otto J]

On the drivers side towards the back there is a flat spot in the case.
On this spot the last half of your VIN number should be stamped into the case.

 

[chris718]

the numbers will dicate final calibration,car type,car line ,production date and plant of manufacture.