Rear Output Shaft Seal Replacement

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Rear Output Shaft Seal

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
CAUTION: Do not damage the sealing surfaces of the transfer cases or the shafts when prying the seals for removal. Damaging the sealing surface may cause leakage or require replacement of the damaged component. Preliminary Procedure: Remove the rear propeller shaft. Refer to One-Piece Propeller Shaft Replacement or Two-Piece Propeller Shaft Replacement .
1	Transfer Case Output Shaft Seal Procedure Remove the seal using an appropriate tool. Install the seal with the notch at the top and the weep hole at the bottom using DT-48021: installer and J 8092: handle. Special Tools DT-48021: Seal Installer J 8092: Drive Handle

Callout

Component Name

CAUTION: Do not damage the sealing surfaces of the transfer cases or the shafts when prying the seals for removal. Damaging the sealing surface may cause leakage or require replacement of the damaged component.

Preliminary Procedure: Remove the rear propeller shaft. Refer to One-Piece Propeller Shaft Replacement or Two-Piece Propeller Shaft Replacement .

Transfer Case Output Shaft Seal

Procedure

Remove the seal using an appropriate tool.
Install the seal with the notch at the top and the weep hole at the bottom using DT-48021: installer and J 8092: handle.

Special Tools

DT-48021: Seal Installer
J 8092: Drive Handle