Installation Procedure

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2003 GMC Yukon XL, 2003 GMC Yukon, 2003 Chevrolet Tahoe, 2003 Chevrolet Suburban, and 2003 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Important: If the gasket or the seal becomes damaged, replace it. DO NOT use any type of silicone sealer or liquid gasket maker in place of the seal or gasket.

Install a NEW transfer case adapter seal.
Install the transfer case adapter.
NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
Install the transfer case adapter bolts.
Tighten

Tighten the bolts to 50 N.m (37 lb ft).

Fig 1: Removing Transfer Case Adapter, Bolts & Seal
Courtesy of GENERAL MOTORS CORP.
Install the transmission mount.

Fig 2: Installing Transmission Mount
Courtesy of GENERAL MOTORS CORP.
Install the transmission mount bolts.
Tighten

Tighten the bolts to 47 N.m (35 Lb ft).

Fig 3: Installing Transmission Mount Bolts
Courtesy of GENERAL MOTORS CORP.
Install the crossmember.
Install the crossmember bolts.
Tighten

Tighten the bolts to 70 N.m (52 Lb ft).

Fig 4: Installing Crossmember & Bolts
Courtesy of GENERAL MOTORS CORP.
Install the transmission mount nuts.
Tighten

Tighten the nuts to 40 N.m (30 Lb ft).
Remove the transmission jack.

Fig 5: Installing Transmission Mount Nuts
Courtesy of GENERAL MOTORS CORP.
Install a NEW transfer case gasket, if necessary.
Install the transfer case. Refer to TRANSFER CASE ASSEMBLY REPLACEMENT .
Check the fluid level. Add fluid if necessary.

Fig 6: Installing Transfer Case Gasket
Courtesy of GENERAL MOTORS CORP.