download
Removal Procedure 1. Raise the vehicle. Refer to Vehicle Lifting. 2. Remove the front propeller shaft. Refer to Propeller Shaft Replacement- Front. 3. Remove the rear propeller shaft. Refer to Propeller Shaft Replacement-Rear. 4. Remove the vent hose from the transfer case. 5. Disconnect the vehicle speed sensor electrical connectors. 6. Remove the electrical connectors from the transfer case motor/encoder. 9. If equipped with a manual transmission, remove the bolt securing the left side support brace to the transmission. 10. If equipped with a manual transmission, remove the bolt and stud securing the left side support brace to the transfer case 11. If equipped with a manual transmission, remove the two bolts securing the right side support brace to the transmission and transfer case. 12. For vehicles equipped with a manual transmission, remove the six nuts securing the transfer case and bracket to the transmission 13. Remove the transfer case. * Start by pulling the transfer case straight back from the transmission. * After the transfer case is pulled out from the transmission turn and lower the transfer case. 14. For vehicles equipped with a automatic transmission, remove the six nuts securing the transfer case and bracket to the transmission adapter. 15. Remove the transfer case. * Start by pulling the transfer case straight back from the transmission. * After the transfer case is pulled out from the transmission turn and lower the transfer case. 16. Remove and discard the gasket. Installation Procedure 1. Install a new gasket to the transmission. Use sealer GM P/N 12346004 in order to hold the gasket in place. 2. Raise and position the transfer case to the vehicle Notice: Refer to Fastener Notice in Service Precautions. 3. For vehicles equipped with a automatic transmission, install the six nuts securing the transfer case and bracket to the transmission adapter. * Tighten the nuts to 47 Nm (35 lb ft) . 4. For vehicles equipped with a manual transmission, install the six nuts securing the transfer case and bracket to the transmission. * Tighten the nuts to 47 Nm (35 lb ft)
