Adapter Replacement
Removal Procedure1. Remove the transfer case.
2. For vehicles equipped with automatic transmission 4L60-E, remove the six bolts securing the adapter and the seal to the transmission.
3. For vehicles equipped with automatic transmission 4L80-E, remove the six bolts securing the adapter and the seal to the transmission.
Installation Procedure
1. For vehicles equipped with the 4L60-E automatic transmission, lubricate the seal mating surface area with oil GM P/N 12346143.
2. Install the adapter and seal to the transmission.
Notice: Refer to Fastener Notice in Service Precautions.
3. Install the six bolts securing the adapter to the transmission.
^ Tighten the adapter bolts to 50 Nm (37 ft. lbs.).
4. For vehicles equipped with the 4L80-E automatic transmission, lubricate the seal mating surface area with oil GM P/N 12346143.
5. Install the adapter and seal to the transmission.
6. Install the six bolts securing the adapter to the transmission.
^ Tighten the adapter bolts to 50 Nm (37 ft. lbs.).
7. Install the transfer case.