Operation CHARM: Car repair manuals for everyone.

Transmission

TRANSMISSION ID AND VIN DERIVATIVE LOCATION







4L60 E TRANSMISSION VIN DERIVATIVE LOCATION, M30
The 6-speed manual transmission, the Borg Warner Modified T-56 (RPO MM6), is stamped with a VIN derivative, which will be located in either the primary or secondary location, as shown. For additional information, refer to VIN Derivative.








AUTOMATIC TRANSMISSION DERIVATIVE OPTIONAL LOCATION
The 4-speed overdrive automatic transmission, the Hydra-Matic 4L60-E (RPO M30), has 2 identifying stampings or laser etchings:






Automatic Transmission Identification Number System:






4L60 E AUTOMATIC TRANSMISSION ID NUMBER LOCATION, M30
The transmission identification (ID) number indicates the transmission model type and when the unit was built. The transmission ID number is located on the bottom of the case just rear of the oil pan.







4L60 E AUTOMATIC TRANSMISSION VIN DERIVATIVE LOCATIONS, M30
A VIN derivative will be located in either the primary or secondary locations, or the optional locations as shown. For additional information, refer to VIN Derivative.