Location of unit numbers (Chevrolet Tahoe 2)

Engine number

The Engine Identification Number (VIN) is located on the left rear side of the cylinder block (1) and typically consists of nine digits.

• The first digit indicates the engine option.
• The second digit indicates the year of manufacture.
• The third digit indicates the manufacturer.
• Digits four through nine indicate the engine serial number.

Automatic transmission number

The number is stamped on the automatic transmission housing, in the place shown in the figure.

Note: Depending on the country of delivery, automatic transmission numbers differ from each other.

4L60-E/4L65-E/4L70-E

• 1. Year of release (5 - 2005).
• 2. Automatic transmission model.
• 3. Automatic transmission type.
• 4. Manufacturer (Y - Toledo, R - Romulus, 4 - Ramos Arizpe).
• 5. Date of manufacture (julian calendar).
• 6. Switching.
• 7. Serial number.

• 1. Year of release (5 - 2005).
• 2. Automatic transmission model.
• 3. Automatic transmission type.
• 4. Date of manufacture (julian calendar).
• 5. Switching.
• 6. Serial number.

60L50/6L80/6L90

• 1. Year of release (6 - 2006).
• 2. Automatic transmission model.
• 3. Automatic transmission type.
• 4. Automatic transmission number.
• 5. Date of manufacture (julian calendar).
• 6. Serial number.
• 7. Source code.
• 8. Broadcast code
• 9. Barcode.
• 10. Transmission identification code.

Transfer case number

The transfer case number is stamped on the transfer case body in the location shown in the figure.

• 1. Model number.
• A. First digit: 1 - single-stage, 2 - two-stage.
• B. Second digit: 2 - T-Utility, 3 - T-Truck, L-Van, 4 or 6 - K-Truck, Utility.
• C. Third digit: 1 - mechanical switching, 3 - electrical switching, 6 - automatic switching, 9 - permanent all-wheel drive.
• 2. General room.
• 3. Serial number - date and switching code.
• 4. Lowest gear ratio.

Front axle number

The front axle number is stamped on the top of the differential housing.

• 1. Broadcast code
• 2. Manufacturer's code.
• 3. Assembly date.
• 4. Switching.
• 5. Assembly time.

Rear axle number

The rear axle number is stamped on the right axle next to the differential housing.

• 1. Broadcast code
• 2. Manufacturer.
• 3. Assembly date (julian calendar).
• 4. Switching.