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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 67 (Rear Drive Axle - Repair Instructions) >> Repair Instructions >> Differential Carrier Assembly Replacement (LSY, RWL) >> Installation Procedure

Installation Procedure

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  1. GM5467482

    Differential Carrier Assembly (1) - Install

  2. GM5466633

    Differential Carrier Front Bolt (1) - Install [2x]

    3. CAUTION:

    Refer to Fastener Caution .

  3. Differential Carrier Nut (2) - Install and tighten [2x] - Fastener Specifications
  4. GM5465601
    CAUTION:

    Refer to Torque-to-Yield Fastener Caution .

    Differential Carrier Rear Bolt (1) - Install NEW and tighten - Fastener Specifications

  5. Remove the jack from under the differential carrier assembly.
  6. GM5459257

    Position the rear wheel drive shaft (1) onto the rear axle shaft.

  7. GM5342244
    NOTE:

    The rear wheel drive shaft universal joint retainer (1) and washers (2) are serviced as a rear wheel drive shaft universal joint retainer kit consisting of 2 bolts and 1 washer.

    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. Remove loose debris from internal and external threads using compressed air.
    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. Adhesives, Fluids, Lubricants, and Sealers
  8. Install 3 NEW wheel drive shaft washers (2).
    9. CAUTION:

    Refer to Torque-to-Yield Fastener Caution .

  9. Install and tighten the 6 NEW rear wheel drive shaft universal joint retainers (1) in a crisscross pattern. Fastener Specifications
  10. GM5461601

    Position the rear wheel drive shaft (1) onto the rear axle shaft.

  11. GM5457792
    NOTE:

    The rear wheel drive shaft universal joint retainer (1) and washers (2) are serviced as a rear wheel drive shaft universal joint retainer kit consisting of 2 bolts and 1 washer.

    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. Remove loose debris from internal and external threads using compressed air.
    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. Adhesives, Fluids, Lubricants, and Sealers
  12. Install 3 NEW wheel drive shaft washers (2).
    13. CAUTION:

    Refer to Torque-to-Yield Fastener Caution .

  13. Install and tighten the 6 NEW rear wheel drive shaft universal joint retainers (1) in a crisscross pattern. Fastener Specifications
  14. GM5334765

    Apply a thin layer of grease to the transmission output shaft splines (1). Adhesives, Fluids, Lubricants, and Sealers

  15. Loosely install a NEW propeller shaft hub clamp (3) to the propeller shaft joint boot.
  16. Support and secure the propeller shaft (2) to a suitable hydraulic jack stand.
  17. Propeller Shaft (2) - Install
  18. GM5317838

    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. Remove loose debris from internal and external threads using compressed air.
    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. Adhesives, Fluids, Lubricants, and Sealers
  19. Propeller Shaft Bearing Support Bolt (1) - Install and tighten [2x] - Fastener Specifications
  20. Remove the hydraulic jack stand supporting the propeller shaft.
  21. GM5317835

    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. Remove loose debris from internal and external threads using compressed air.
    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. Adhesives, Fluids, Lubricants, and Sealers
  22. Align the relationship marks (2) made on the propeller shaft and the rear differential flange.
  23. Rear Propeller Shaft Bolt (1) - Install [3x]
  24. Rear Propeller Shaft Nut (3) - Loosely install [3x]
  25. Rear Propeller Shaft Bolt (1) - Tighten [3x] - Fastener Specifications
  26. GM5765227

    Ensure that the drive shaft boot is completely seated in the output shaft groove prior to crimping the propeller shaft hub clamp (2).

  27. Using the DT-35910  Drive Axle Seal Clamp Pliers (1), crimp the propeller shaft hub clamp (2) until the final crimped outer diameter (a) is 39 - 41 mm (1.54 - 1.61 in).
  28. GM5427478

    Transmission Mount (2) - Install

    29. NOTE:

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

  29. Transmission Mount Bolt (1) - Loosely install [2x]
  30. GM5427472

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

  31. GM5427478

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

  32. GM5427472

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

  33. GM5471168

    Floor Panel Number 2 Cross Bar Reinforcement (1) - Install

  34. Floor Panel Number 2 Cross Bar Reinforcement Bolt (2) - Install and tighten [4x] - Fastener Specifications
  35. GM5309833

    Exhaust Intermediate Underbody Heat Shield (2) - Install

  36. Exhaust Heat Shield Bolt (1) - Install and tighten [6x] - Fastener Specifications
  37. GM5309214
    NOTE:

    With the aid of an assistant, install the exhaust system to the vehicle.

    Catalytic Converter Gasket (2) - Install NEW

  38. Exhaust Muffler (1) - Install
  39. GM5309211

    Exhaust Muffler (1) @ Exhaust Rear Muffler Insulator-Right Side (3) - Install

  40. Exhaust Muffler (1) @ Exhaust Intermediate Pipe Insulator-Right Side (2) - Install
  41. GM5309202

    Exhaust Muffler (1) @ Exhaust Rear Muffler Insulator-Left Side (3) - Install

  42. Exhaust Muffler (1) @ Exhaust Intermediate Pipe Insulator-Left Side (2) - Install
  43. GM5309188

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

  44. GM5471236

    Floor Panel Reinforcement (1) - Install

  45. Floor Panel Number 4 Cross Bar Reinforcement Bolt (2) - Install and tighten [6x] - Fastener Specifications
  46. GM5400642

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

  47. Underbody Rear Air Deflector Plastic Nut (3) - Install and tighten [3x] - Fastener Specifications
  48. Underbody Rear Air Deflector Bolt (2) - Install and tighten [3x] - Fastener Specifications
  49. Underbody Rear Air Deflector Nut (4) - Install and tighten [2x] - Fastener Specifications
  50. Rear Wheelhouse Liner Screw (1) - Install and tighten - Fastener Specifications
  51. GM5471237

    Rear Tire Front Air Deflector- Right Side (1) - Install

  52. Rear Tire Front Air Deflector Bolt (2) - Install and tighten [2x] - Fastener Specifications
  53. GM5400553

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

  54. Underbody Rear Air Deflector Plastic Nut (2) - Install and tighten [3x] - Fastener Specifications
  55. Underbody Rear Air Deflector Bolt (3) - Install and tighten [3x] - Fastener Specifications
  56. Underbody Rear Air Deflector Nut (4) - Install and tighten [2x] - Fastener Specifications
  57. Rear Wheelhouse Liner Screw (1) - Install and tighten - Fastener Specifications
  58. GM5395705

    Rear Tire Front Air Deflector- Left Side (2) - Install

  59. Rear Tire Front Air Deflector Bolt (1) - Install and tighten [2x] - Fastener Specifications
  60. GM5458208
    CAUTION:

    Refer to Component Fastener Tightening Caution .

    Differential Carrier Drain Plug (1) - Install and tighten - Fastener Specifications

  61. Fill the differential carrier with axle lubricant.
  62. Check the differential fluid level. It should be even with the bottom of the fill plug hole to no lower than 2 mm (0.08 in) below the opening.
  63. GM5458182
    CAUTION:

    Refer to Component Fastener Tightening Caution .

    Differential Carrier Fill Plug (1) - Install and tighten - Fastener Specifications

  64. Remove the drain pan.
  65. Inspect the exhaust system for leaks.
  66. Remove the support and lower the vehicle.
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