Transmission
Transmission ID and VIN Derivative Location
Transmission ID and VIN Derivative Location 4T60-E/4T65-E
1 - Goodwrench(R) Tag Location
2 - Year
3 - Not Used
4 - Remanufacturing Site Code
5 - Serial Number
6 - Julian Date
7 - Year Remanufactured
8 - Model
9 - Transmission Identification Plate Location
10 - Model Year
11 - Line Build
12 - GM Production Code
13 - Julian Date
14 - Shift
15 - Model
16 - Serial Number in Base Code 31
17 - W = Warren Assembly Plant
18 - 4T65-E
19 - Model
20 - Vehicle Identification Number (VIN) Derivative Stamping Location
All automatic transmissions have a metal identification (ID) nameplate (9) attached to the case exterior.
Transmission VIN Location 4T65-E, M15/MN3/MN7
The primary (1) and secondary (2) Manual Tooling VIN Derivative Locations are on the casting of the transmission housing.
Transaxle VIN Derivative Stamping
The location for the Semi-Automatic VIN derivative (1) is on the transmission housing.