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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 227 (Propeller Shaft) >> Repair Instructions >> Two-Piece Propeller Shaft Replacement (LTG, LGX, LCV) >> Installation Procedure

Installation Procedure

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

    If reusing the propeller shaft bolts, to ensure proper adhesion and fastener retention, the threads must be free of debris prior to the application of threadlocker. Use an appropriate cleaner to thoroughly clean the threads and allow to dry. Apply threadlocker to the propeller shaft to flange bolts. Ensure that there are no gaps in the threadlocker along the length of the filled area of the bolts. Allow the threadleocker to cure approximately 10 minutes before installation.

  1. Thoroughly clean apply threadlocker to the threads of the propeller shaft bolts. Adhesives, Fluids, Lubricants, and Sealers 
  2. Fig 1: Propeller Shaft
    GM4628554Courtesy of GENERAL MOTORS COMPANY
  3. Position the propeller shaft (1) in the vehicle.
  4. Fig 2: Propeller Shaft Bearing Support Bolts
    GM4628544Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Fastener Caution .

  5. Install the 2 propeller shaft bearing bolts (1) and tighten to 50 N.m (37 lb ft).
  6. Fig 3: Aligning Reference Marks Between Propeller Shaft Flange And Rear Differential Flange
    GM4627505Courtesy of GENERAL MOTORS COMPANY
  7. Align the reference marks (1) between the propeller shaft flange (2) and the rear differential flange (3).
  8. Fig 4: Propeller Shaft Nuts And Bolts
    GM4627495Courtesy of GENERAL MOTORS COMPANY
  9. Install the 3 propeller shaft bolts (2) and the nuts (1) at the rear differential flange.
  10. Tighten the bolts (1) to 90 N.m (66 lb ft).
  11. Fig 5: Aligning Reference Marks Between Propeller Shaft Flange And Rear Differential Flange
    GM4627428Courtesy of GENERAL MOTORS COMPANY
  12. Align the reference marks (1) between the propeller shaft flange (2) and the output flange of the transmission (3).
  13. Fig 6: Propeller Shaft Nuts And Bolts
    GM4627499Courtesy of GENERAL MOTORS COMPANY
  14. Install the 3 front propeller shaft bolts (2) and the nuts (1) at the transmission output flange.
  15. Tighten the bolts (1) to 90 N.m (66 lb ft).
  16. Install the floor panel number 2 cross brace. Floor Panel Number 2 Cross Bar Reinforcement Replacement
  17. Install the intermediate body exhaust heat shield. Intermediate Body Exhaust Heat Shield Replacement (Non V-Series)Intermediate Body Exhaust Heat Shield Replacement (V-Series)
  18. Install the exhaust muffler. Exhaust System Replacement (LGX)
  19. Remove the support and lower the vehicle.