LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chevrolet >> 2024 >> Traverse Z71 >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> Power Transfer Unit - GKN 761 >> Repair Instructions - On Vehicle >> Power Transfer Unit Case Replacement >> Installation Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Installation Procedure

  1. Clean the contact surfaces between the transfer case and the transmission.
  2. GM6457258Courtesy of GENERAL MOTORS COMPANY

    Power Transfer Unit Interface Seal (1) - Install NEW

  3. GM6385460Courtesy of GENERAL MOTORS COMPANY

    Support the transfer case with a suitable jack, and secure with suitable straps.

  4. Raise and align the transfer case in the correct position in relation to the transmission.
  5. Install the transfer case (2) to the transmission.
  6. CAUTION:

    Refer to Fastener Caution .

  7. Power Transfer Unit Bolt (1) Install and tighten [3x] - Fastener Specifications 
  8. GM5041864Courtesy of GENERAL MOTORS COMPANY

    Connect the transfer case vent hose (1) to the transfer case (2).

  9. GM6385461Courtesy of GENERAL MOTORS COMPANY

    Power Transfer Unit Bolt (1) Install and tighten [2x] - Fastener Specifications 

  10. Connect the shift actuator electrical connector.
  11. GM6385108Courtesy of GENERAL MOTORS COMPANY

    Transfer Case Bracket (3) - Install

  12. Transfer Case Bracket Bolt (2) - Install and tighten [2x] - Fastener Specifications 
  13. Transfer Case Bracket Bolt (1) - Install and tighten [3x] - Fastener Specifications 
  14. GM6389580Courtesy of GENERAL MOTORS COMPANY

    Clean the splines of the power transfer unit output shaft and apply a light coat of high temperature grease. Adhesives, Fluids, Lubricants, and Sealers

  15. Power Transfer Unit Half Shaft Seal (2) - Install NEW
  16. Front Wheel Drive Shaft Retaining Ring (1) - Install NEW
  17. Prior to installation, clean the splines of the wheel drive shaft constant velocity inner joint and apply a light coating of high temperature grease. Adhesives, Fluids, Lubricants, and Sealers
  18. GM6389582Courtesy of GENERAL MOTORS COMPANY

    Front Wheel Drive Shaft Washer (1) @ Front Wheel Drive Half Shaft - Install NEW

  19. GM6463587Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Ensure that the front wheel drive half shaft is fully seated onto the power transfer unit.

    Front Wheel Drive Half Shaft (1) - Install

  20. Install the front wheel drive half shaft (1) into the front wheel hub.
  21. GM6389578Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    This vehicle is equipped with torque-to-yield or single use fasteners. Install a NEW torque-to-yield or single use fastener when installing this component. Failure to replace the torque-to-yield or single use fastener could cause damage to the vehicle or component.

    Front Wheel Drive Shaft Nut (1) - Install NEW and hand tighten

  22. Have an assistant apply the brakes.
  23. NOTE:

    Do NOT use air tools to tighten the front wheel drive shaft nut. Tighten the NEW front wheel drive shaft nut slowly to draw the front wheel drive half shaft into the front wheel hub prior to tightening to specifications.

  24. Front Wheel Drive Shaft Nut (1) - Tighten - Fastener Specifications
  25. GM6385114Courtesy of GENERAL MOTORS COMPANY

    Power Transfer Unit Heat Shield (2) - Install

  26. Power Transfer Unit Heat Shield Bolt (1) - Install and tighten [3x] - Fastener Specifications 
  27. GM6426271Courtesy of GENERAL MOTORS COMPANY

    Turbocharger Exhaust Pipe Gasket (2) - Install NEW

  28. Warm Up Three-Way Catalytic Converter (1) - Install
  29. GM6584103Courtesy of GENERAL MOTORS COMPANY

    Catalytic Converter Brace Bracket Bolt (1) - Install and hand tighten [2x]

  30. Connect the electrical connector.
  31. GM6382897Courtesy of GENERAL MOTORS COMPANY

    Warm Up Three-Way Catalytic Converter Nut. (1) - Install and tighten [4x] - Fastener Specifications

  32. GM6584103Courtesy of GENERAL MOTORS COMPANY

    Catalytic Converter Brace Bracket Bolt (1) - Tighten [2x] - Fastener Specifications

  33. GM6398843Courtesy of GENERAL MOTORS COMPANY

    Catalytic Converter Front Heat Shield- Inner (1) - Install

  34. GM6398179Courtesy of GENERAL MOTORS COMPANY

    Turbocharger Heat Shield Bolt (1) - Install and tighten [2x] - Fastener Specifications

  35. GM6397729Courtesy of GENERAL MOTORS COMPANY

    Catalytic Converter Front Heat Shield- Outer (1) - Install

  36. GM6397678Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Using a torque adapter may be helpful for bolt access.

    Turbocharger Heat Shield Bolt (1) - Install and tighten [4x] - Fastener Specifications

  37. GM6396334Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    A special anti-seize compound is used in the HO2S threads. The compound consists of liquid graphite and glass beads. The graphite tends to burn away, but the glass beads remain, making the sensor easier to remove. New, or service replacement sensors already have the compound applied to the threads. If the sensor is removed from an exhaust component and if for any reason the sensor is to be reinstalled, the threads must have anti-seize compound applied before reinstallation. Adhesives, Fluids, Lubricants, and Sealers

    Using a suitable tool, install and tighten the heated oxygen sensor (1). Fastener Specifications

  38. Connect the electrical connector.
  39. GM6383156Courtesy of GENERAL MOTORS COMPANY

    Drivetrain and Front Suspension Cradle (1) - Install - Drivetrain and Front Suspension Cradle Removal and Installation (AWD) , or Drivetrain and Front Suspension Cradle Removal and Installation (FWD) , or Drivetrain and Front Suspension Cradle Removal and Installation (Z71)

  40. Refill power transfer case fluid. Power Transfer Unit Case Fluid Replacement 
  41. Inspect the exhaust system for leaks.