Installation Procedure

WARNING: This page is about a different variant/trim than selected.

NOTE: Refer to FASTENER NOTICE in Cautions and Notices.

IMPORTANT: Use only drain and fill plugs that are made from aluminum. Steel or brass plugs are not compatible with the magnesium case.

Fig 1: View Of Transfer Case Drain Plug

Courtesy of GENERAL MOTORS CORP.

Install the drain plug.
Tighten: Tighten the plug to 20 N.m (15 lb ft).
Fill the transfer case to the bottom of the fill plug hole with Auto-Trak II, transfer case fluid, GM P/N 12378508 (Canadian P/N 10953626).
Install the fill plug.

Fig 2: View Of Transfer Case Fill Plug
Courtesy of GENERAL MOTORS CORP.

Tighten: Tighten the plug to 20 N.m (15 lb ft).
Install the transfer case shield, if equipped. Refer to Transfer Case Shield Replacement .
Lower the vehicle.