Transmission ID and VIN Derivative Location
TRANSMISSION ID AND VIN DERIVATIVE LOCATION5L40-E/5L50-E Transmission Identification Location:
The Hydra-Matic 5L40E identification plate for the production unit is located on the driver's side of the transmission near the shift selector switch.
4L30-E Transmission Identification Location, ML4:
The transmission VIN derivative plate is located on the right side of the transmission.