All engines and transaxles are stamped with a partial Vehicle Identification Number (VIN). The following table identifies the different VIN derivative characters, character positions, and their respective descriptions:
Position  | Definition  | Character  | Description  | 
|---|---|---|---|
1  | Division  | C T  | Chevrolet Truck GMC Truck  | 
2  | Model Year  | 3  | 2003  | 
3  | Plant Location  | G J R  | Silao Janesville Arlington  | 
4-9  | Plant Sequence Number  | 100,001  | Plant Sequence Number  |