Transmission
TRANSMISSION ID AND VIN DERIVATIVE LOCATIONA Transmission ID Tag and a VIN Derivative stamp is located on the transmission case.
4L60-E Automatic Transmission
The 4L60-E transmission ID and VIN derivative location (1).
4L80-E Automatic Transmission
Transmission ID and VIN derivative locations (1,2). The right hand stamping is shown, left hand is opposite. Pin or hand stamp location (3) for the transmission ID or VIN derivative.