Power Transfer Unit Rear Output Shaft Housing Cleaning and Inspection

WARNING: This page is about a different car, the 2017 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Power Transfer Unit Rear Output Shaft Housing

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
Preliminary Procedure Clean the power transfer unit input shaft in cleaning solvent and air dry.
1	Power Transfer Unit Input Shaft Splines NOTE: Inspect for excessive wear, cracks, or damage.
2	Power Transfer Unit Rear Output Shaft Housing Bolt Holes NOTE: Inspect for excessive wear, cracks, or damage.
3	Power Transfer Unit Rear Output Shaft Splines NOTE: Inspect for excessive wear, cracks, or damage.
4	Power Transfer Unit Rear Output Shaft Housing Surface NOTE: Inspect for pitting, excessive wear, or damage.