Installation Procedure

Fig 1: View Of Fill & Drain Plugs

Courtesy of GENERAL MOTORS CORP.

NOTE: Refer to Fastener Notice in Cautions and Notices.

Install the drain plug (1) and gasket.
Tighten: Tighten the drain plug to 32 N.m (24 lb ft).
Fill the transfer case with synthetic gear oil GM P/N United States 12378514 Canada P/N 88901045, or equivalent. Refer to Capacities - Approximate Fluid in General Information.
Fill the transfer case to the bottom of the oil fill plug hole.
Install the oil fill plug (2) and gasket.
Tighten: Tighten the oil fill plug to 28 N.m (21 lb ft).
Lower the vehicle.