All automatic transmissions have a metal identification (ID) nameplate (9) attached to the case exterior.
The primary (1) and secondary (2) Manual Tooling VIN Derivative Locations are on the casting of the transmission housing.
The location for the Semi-Automatic VIN derivative (1) is on the transmission housing.
All automatic transmissions have a metal identification (ID) nameplate (1) attached to the case exterior.
All engines and transmissions, as well as removable roof panels are stamped or laser etched with a partial Vehicle Identification Number (VIN), which was derived from the complete VIN. A VIN derivative contains the following nine positions:
A VIN derivative can be used to determine if a vehicle contains the original engine, transmission or removable roof panel, by matching the VIN derivative positions to their accompanying positions in the complete VIN:
The 6-speed manual transmission, the Borg Warner T-56 (RPO MM6), is stamped with a VIN derivative on the LH side of the transmission case.
The 4-speed overdrive automatic transmission, the Hydra-Matic 4L60-E (RPO M30), is stamped or laser etched with a transmission identification number and a VIN derivative.
The transmission identification number provides the transmission model and when it was built. The transmission (ID) number is located on the bottom of the case just rear of the oil pan.
The VIN derivative will be placed in one of four locations illustrated.