Transfer Case Adapter Assemble (MHB)

Fig 1: Transfer Case Adapter

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
1	Transfer Case Adapter Bushing Procedure Position the bushing (1) to the bore of the adapter plate. Align the opening of the bushing to the alignment mark on the face of the adapter. Mark the side of the bushing for alignment. Install the DT 50839 onto the adapter. Install the CH-50342 threaded rod through the bushing and the DT 50839. Install the CH-50342 washers, nuts, and bearing onto the rod. Install the bearing onto the rod at the end closest to the bushing. Tighten the nuts until snug. Hold the flat on the threaded rod and rotate the bottom nut in order to install the bushing into the bore of the adapter. Tighten until the bushing has contacted the face of the installer tool. Inspect the bushing for proper installation. A properly installed bushing will be centered in the bore with 1.5-2.5 mm (0.06-0.10 in) of the bushing protruding from each side of the plate. Special Tools DT 50839 Transmission Adapter Plate Bushing Replacer CH-50342 Hardware Kit For equivalent regional tools, refer to Special Tools .
2	Transfer Case Adapter-to-Transfer Case Seal NOTE: Install the OD groove of the seal onto the raised area in the adapter seal bore. A properly installed seal will be installed 2.66 mm (0.10 in) below the machined surface when measured from the PTU side of the adapter.
3	Transfer Case Adapter

Callout

Component Name

Transfer Case Adapter Bushing

Procedure

Position the bushing (1) to the bore of the adapter plate.
Align the opening of the bushing to the alignment mark on the face of the adapter.
Mark the side of the bushing for alignment.
Install the DT 50839 onto the adapter.
Install the CH-50342 threaded rod through the bushing and the DT 50839.
Install the CH-50342 washers, nuts, and bearing onto the rod. Install the bearing onto the rod at the end closest to the bushing.
Tighten the nuts until snug.
Hold the flat on the threaded rod and rotate the bottom nut in order to install the bushing into the bore of the adapter. Tighten until the bushing has contacted the face of the installer tool.
Inspect the bushing for proper installation. A properly installed bushing will be centered in the bore with 1.5-2.5 mm (0.06-0.10 in) of the bushing protruding from each side of the plate.

Special Tools

DT 50839 Transmission Adapter Plate Bushing Replacer
CH-50342 Hardware Kit
For equivalent regional tools, refer to Special Tools .

Transfer Case Adapter-to-Transfer Case Seal

NOTE:

Install the OD groove of the seal onto the raised area in the adapter seal bore. A properly installed seal will be installed 2.66 mm (0.10 in) below the machined surface when measured from the PTU side of the adapter.

Transfer Case Adapter