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Home >> Cadillac >> 2019 >> XT4 Sport, AWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Power Transfer Unit/Transfer Case - AAM >> Repair Instructions - Off Vehicle >> Power Transfer Unit Case Assemble >> Power Transfer Unit Propeller Shaft Seal, O-ring and Retainer Installation
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Power Transfer Unit Propeller Shaft Seal, O-ring and Retainer Installation

Fig 1: Power Transfer Unit Propeller Shaft Seal, O-Ring and Retainer Components Location
GM4893576Courtesy of GENERAL MOTORS COMPANY
NOTE: Callouts in the following chart represent components shown in graphic above.
Power Transfer Unit Propeller Shaft Seal, O-Ring and Retainer Installation

Callout Component Name
1 Power Transfer Unit Propeller Shaft Seal

Procedure

  1. Make sure the seal bore is clean and free of oil or dirt.
  2. Install a NEW seal.

Special Tools

  • DT-51467 - A  Seal Installer
  • DT-305 - 1  Driver Handle

Equivalent regional tools: Special Tools 
2 Power Transfer Unit Propeller Shaft Seal O-Ring
Procedure 
Install a NEW seal.
3 Power Transfer Unit Propeller Shaft Retainer

Procedure

  1. Install a NEW retainer.
  2. When installing a NEW half shaft retaining clip, open the clip only as far as necessary to fit the clip over the shaft. Opening the clip too far will damage it.
  3. Start one end of the clip in the shaft groove and slowly push the clip onto and over the shaft.