Transfer Case Identification

Fig 1: Transfer Case Identification Tag (Model Number, Assembly Number, Serial Number & Low Range Reduction Rate)

Courtesy of GENERAL MOTORS CORP.

An identification tag is attached to the rear half of the transfer case. The tag provides the following information:

1. Model number (1)
   1. First Digit-1 =Single Speed, 2=Two Speed
   2. Second Digit-2 = T-Utility, 3 =T-Truck, L-Van, 4 or 6 = K-Truck and Utility
   3. Third Digit-1 = Manual, 3 = Electric Shift, 6 = Automatic, 9 = All Wheel Drive
2. Assembly number (2)
3. Serial number - Date & Shift Code (3)
4. Low range reduction ratio (4)

The information on this tag is necessary for servicing the transfer case. If the tag is removed or becomes dislodged during service operations, keep the identification tag with the unit.

Fig 2: Transfer Case Identification Tag (Model Number, Manufacturer, Part Number & Serial Number)

Courtesy of GENERAL MOTORS CORP.

An identification tag is attached to the rear half of the transfer case. The tag provides the following information:

• 1. Model number
• 2. Manufacturer
• 3. Part Number
• 4. Serial Number

The information on this tag is necessary for servicing the transfer case. If the tag is removed or becomes dislodged during service operations, keep the identification tag with the unit.