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Home >> Buick >> 2021 >> Enclave Preferred >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Power Transfer Unit AAM) >> Repair Instructions - Off Vehicle >> Power Transfer Unit Case Assemble >> Power Transfer Unit Intermediate Drive Shaft Components Installation
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Power Transfer Unit Intermediate Drive Shaft Components Installation

WARNING: This page is about a different variant/trim than selected.
Fig 1: Power Transfer Unit Intermediate Drive Shaft Components Location
GM5118585Courtesy of GENERAL MOTORS COMPANY
Power Transfer Unit Intermediate Drive Shaft Components Installation

Callout Component Name
1 Power Transfer Unit Intermediate Drive Shaft
2 Power Transfer Unit Intermediate Drive Shaft Bearing Retaining Ring [ 2x ]
3 Power Transfer Unit Intermediate Drive Shaft Bearing
Procedure 
Use a press and press tube to install the bearing to the power transfer unit intermediate drive shaft.
4 Power Transfer Unit Intermediate Drive Shaft Bearing Retainer
5 Power Transfer Unit Intermediate Drive Shaft Seal
CAUTION:

When replacing power transfer unit case seals, use appropriate GM tools along with a hydraulic press. Failure to do so may result in misalignment or damage to the seal and/or power transfer unit.

CAUTION:

Do not nick, scratch or damage the sealing surface. The sealing surface is a machined surface. Damage to the machined surface can cause leakage.

Special Tools

  • DT-51835  Seal Installer
  • J-42176  Driver Handle

Equivalent regional tools: Refer to Special Tools .
6 Power Transfer Unit Half Shaft Seal - O-Ring
Procedure 
Install a NEW seal.
7 Power Transfer Unit Intermediate Drive Shaft Clip
Procedure 
Install a NEW retainer.