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Home >> Cadillac >> 2021 >> CT4 Sport, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 51 (Propeller Shaft) >> Repair Instructions >> Propeller Shaft Replacement (LF4, MHU) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.
  1. GM5863854Courtesy of GENERAL MOTORS COMPANY

    Position the propeller shaft (1) in the vehicle.

  2. GM5863691Courtesy of GENERAL MOTORS COMPANY

    If NEW threaded components are being installed, loosen the adhesive using a metal pick or similar tool before proceeding. If threaded components are reused, prepare the threaded components using the following steps:

    1. Remove any loose cured adhesive from the external threads of the components using a lint free cloth.
    2. Thread the cleaned components into the internal mating threads and remove to loosen trapped cured adhesive.
    3. Apply thread locking adhesive to the external threads of the components. Adhesives, Fluids, Lubricants, and Sealers 
    4. Apply liquid thread locking adhesive in a strip along half of the length of the external threads, starting at the tip, just prior to installation.
    3. CAUTION:

    Refer to Fastener Caution .

  3. Install the 2 propeller shaft bearing support bolts (1) and tighten. Fastener Specifications 
  4. GM5863695Courtesy of GENERAL MOTORS COMPANY

    Align the reference mark (3) between the propeller shaft flange (1) and the rear axle pinion flange (2).

  5. GM5863697Courtesy of GENERAL MOTORS COMPANY

    If NEW threaded components are being installed, loosen the adhesive using a metal pick or similar tool before proceeding. If threaded components are reused, prepare the threaded components using the following steps:

    1. Remove any loose cured adhesive from the external threads of the components using a lint free cloth.
    2. Thread the cleaned components into the internal mating threads and remove to loosen trapped cured adhesive.
    3. Apply thread locking adhesive to the external threads of the components. Adhesives, Fluids, Lubricants, and Sealers 
    4. Apply liquid thread locking adhesive in a strip along half of the length of the external threads, starting at the tip, just prior to installation.
  6. Install the 3 rear propeller shaft bolts (1) and the 3 rear propeller shaft nuts (2).
  7. Tighten the 3 the rear propeller shaft bolts (1). Fastener Specifications 
  8. GM5863694Courtesy of GENERAL MOTORS COMPANY

    Align the reference mark (2) between the propeller shaft flange (3) and the output flange (1) of the transmission.

  9. GM5863696Courtesy of GENERAL MOTORS COMPANY

    If NEW threaded components are being installed, loosen the adhesive using a metal pick or similar tool before proceeding. If threaded components are reused, prepare the threaded components using the following steps:

    1. Remove any loose cured adhesive from the external threads of the components using a lint free cloth.
    2. Thread the cleaned components into the internal mating threads and remove to loosen trapped cured adhesive.
    3. Apply thread locking adhesive to the external threads of the components. Adhesives, Fluids, Lubricants, and Sealers 
    4. Apply liquid thread locking adhesive in a strip along half of the length of the external threads, starting at the tip, just prior to installation.
  10. Install the 3 front propeller shaft bolts (2) and the 3 front propeller shaft nuts (1).
  11. Tighten the 3 front propeller shaft bolts (1). Fastener Specifications 
  12. GM5867371Courtesy of GENERAL MOTORS COMPANY

    Transmission Mount (2) - Install

    13. NOTE:

    For proper bolt alignment, loosely install all mount bolts prior to tightening to specifications.

  13. Transmission Mount Bolt (1) - Loosely install [2x]
  14. GM5867370Courtesy of GENERAL MOTORS COMPANY

    Transmission Mount Bracket Bolt (1) - Loosely install [4x]

  15. GM5867371Courtesy of GENERAL MOTORS COMPANY

    Transmission Mount Bolt (1) - Tighten [2x] - Fastener Specifications

  16. GM5867370Courtesy of GENERAL MOTORS COMPANY

    Transmission Mount Bracket Bolt (1) - Tighten [4x] - Fastener Specifications

  17. Remove the jack stand.
  18. GM5334717Courtesy of GENERAL MOTORS COMPANY

    Floor Panel Number 2 Cross Bar Reinforcement (2) - Install

  19. Floor Panel Number 2 Cross Bar Reinforcement Bolt (1) - Install and tighten [4x] - Fastener Specifications
  20. GM5865888Courtesy of GENERAL MOTORS COMPANY

    Exhaust Intermediate Underbody Heat Shield (2) - Install

  21. Exhaust Heat Shield Bolt (1) - Install and tighten [2x] - Fastener Specifications
  22. GM5865329Courtesy of GENERAL MOTORS COMPANY

    Catalytic Converter Gasket (2) - Install NEW

  23. With the aid of an assistant, install the exhaust muffler (1).
  24. GM5865300Courtesy of GENERAL MOTORS COMPANY

    Exhaust Muffler Hanger Bracket Nut (1) - Install and tighten [4x] - Fastener Specifications

  25. GM5865293Courtesy of GENERAL MOTORS COMPANY

    Electrical Connector (1) - Connect

  26. GM5865287Courtesy of GENERAL MOTORS COMPANY

    Electrical Connector (1) - Connect

  27. GM5406632Courtesy of GENERAL MOTORS COMPANY

    Exhaust Muffler (1) @ Exhaust Intermediate Pipe Insulator-Right Side (2) - Install [2x]

  28. GM5406578Courtesy of GENERAL MOTORS COMPANY

    Exhaust Muffler (1) @ Exhaust Intermediate Pipe Insulator-Left Side (2) - Install [2x]

  29. GM5865271Courtesy of GENERAL MOTORS COMPANY

    Exhaust Pipe Clamp (1) - Tighten [2x] - Fastener Specifications

  30. GM5865265Courtesy of GENERAL MOTORS COMPANY

    Catalytic Converter Nut (1) - Install and tighten [2x] - Fastener Specifications

  31. GM5400756Courtesy of GENERAL MOTORS COMPANY

    Floor Panel Reinforcement (2) - Install

  32. Floor Panel Number 4 Cross Bar Reinforcement Bolt (1) - Install and tighten [6x] - Fastener Specifications
  33. GM5854893Courtesy of GENERAL MOTORS COMPANY

    Underbody Rear Air Deflector- Left Side (5) - Install

  34. Transmission Fluid Cooler Pipe Bracket Bolt- Left Side (3) - Install and tighten [2x] - Fastener Specifications
  35. Underbody Rear Air Deflector Nut- Left Side (2) - Install and tighten [5x] - Fastener Specifications
  36. Underbody Front Air Deflector Bolt- Left Side (1) - Install and tighten [6x] - Fastener Specifications
  37. GM5839256Courtesy of GENERAL MOTORS COMPANY

    Underbody Rear Air Deflector- Right Side (5) - Install

  38. Transmission Fluid Cooler Pipe Bracket Bolt- Right Side (3) - Install and tighten [2x] - Fastener Specifications
  39. Underbody Rear Air Deflector Nut- Right Side (2) - Install and tighten [5x] - Fastener Specifications
  40. Underbody Front Air Deflector Bolt- Right Side (1) - Install and tighten [6x] - Fastener Specifications
  41. GM5400642Courtesy of GENERAL MOTORS COMPANY

    Underbody Rear Air Deflector- Right Side (5) - Install

  42. Underbody Rear Air Deflector Nut- Right Side (3) - Install and tighten [3x] - Fastener Specifications
  43. Underbody Rear Air Deflector Bolt- Right Side (2) - Install and tighten [3x] - Fastener Specifications
  44. Underbody Rear Air Deflector Nut- Right Side (4) - Install and tighten [2x] - Fastener Specifications
  45. Rear Wheelhouse Liner Bolt- Right Side (1) - Install and tighten - Fastener Specifications
  46. GM5400553Courtesy of GENERAL MOTORS COMPANY

    Underbody Rear Air Deflector- Left Side (5) - Install

  47. Underbody Rear Air Deflector Nut- Left Side (2) - Install and tighten [3x] - Fastener Specifications
  48. Underbody Rear Air Deflector Bolt- Left Side (3) - Install and tighten [3x] - Fastener Specifications
  49. Underbody Rear Air Deflector Nut- Left Side (4) - Install and tighten [2x] - Fastener Specifications
  50. Rear Wheelhouse Liner Bolt- Left Side (1) - Install and tighten - Fastener Specifications
  51. GM5395705Courtesy of GENERAL MOTORS COMPANY

    Rear Tire Front Air Deflector- Left Side and Right Side (2) - Install [2x]

  52. Rear Tire Front Air Deflector Bolt- Left Side and Right Side (1) - Install and tighten [4x] - Fastener Specifications
  53. Remove the support and lower the vehicle.
  54. Inspect the exhaust system for leaks.
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