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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 369 (Power Transfer Unit - GKN 761) >> Repair Instructions - On Vehicle >> Power Transfer Unit Case Replacement >> Installation Procedure

Installation Procedure

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.
  1. Clean the contact surfaces between the transmission and the transfer case.
  2. Fig 1: Transfer Case, Vent Hose And Transfer Case-To-Transmission Bolts
    GM4289095Courtesy of GENERAL MOTORS COMPANY
  3. 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. Install the transfer case-to-transmission bolts (3) and tighten to 58 N.m (43 lb ft).
  8. Connect the shift actuator electrical connector.
  9. Connect the transfer case vent hose (1) to the transfer case (2).
  10. Install the transfer case bracket. Refer to Transfer Case Bracket Replacement (With LGX Engine) Transfer Case Bracket Replacement (With LCV Engine) 
  11. Install the rear mount through bolt. Refer to Transmission Rear Mount Replacement (All Wheel Drive)
  12. Install the rear mount bracket. Refer to Transmission Rear Mount Bracket Replacement (All Wheel Drive)
  13. Install the warm up three way catalytic converter. Refer to Warm Up Three-Way Catalytic Converter Replacement (Bank 1, LGX)Warm Up Three-Way Catalytic Converter Replacement (Bank 2, LGX)Warm Up Three-Way Catalytic Converter Replacement (LCV)
  14. Connect the two piece propeller shaft from the transfer case. Refer to Two-Piece Propeller Shaft Replacement
  15. Check power transfer case fluid level. Refer to Approximate Fluid Capacities , and Adhesives, Fluids, Lubricants, and Sealers