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Home >> GMC >> 2023 >> Hummer EV Edition 1 >> Repair and Diagnosis >> Body & Frame >> Frames, Subframes & Crossmembers >> Frame And Underbody >> Repair Instructions >> Front Cradle Replacement >> Installation Procedure

Installation Procedure

  1. GM5902760Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Left side shown, right side similar.

    With the aid of an assistant, install the following components on the left and right sides as an assembly (1).

    • Front Brake Rotor
    • Front Lower Control Arm
    • Steering Knuckle
  2. Support the front lower control arms with suitable straps or chains to stop over articulation of the front lower control arm ball joints.
  3. GM5902746Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Left side shown, right side similar.

    Front Lower Control Arm Rear Bolt- Left Side and Right Side (3) - Install [2x]

  4. Front Lower Control Arm Front Bolt- Left Side and Right Side (2) - Install [2x]
  5. CAUTION:

    Refer to Fastener Caution .

  6. Front Lower Control Arm Rear Nut- Left Side and Right Side - (4) Install and tighten [2x] - Fastener Specifications
  7. Front Lower Control Arm Front Nut- Left Side and Right Side (1) - Install and tighten [2x] - Fastener Specifications
  8. GM5840201Courtesy of GENERAL MOTORS COMPANY

    Underbody Camera Bracket (2) - Install

  9. Underbody Camera Bracket Bolt (1) - Install and tighten [2x] - Fastener Specifications
  10. GM5902734Courtesy of GENERAL MOTORS COMPANY

    Wiring Harness Bracket (4) - Install

  11. Wiring Harness Bracket Bolt (3) - Install and tighten [2x] - Fastener Specifications 
  12. Front Stabilizer Shaft (2) - Install
  13. Front Stabilizer Shaft Bolt (1) - Install and tighten [4x] - Fastener Specifications
  14. GM5902730Courtesy of GENERAL MOTORS COMPANY

    Electric Belt Drive Rack and Pinion Steering Gear (3) - Install

  15. Steering Gear Bolt- Upper (1) - Install and tighten [2x] - Fastener Specifications
  16. Steering Gear Bolt - Lower (2) - Install [2x]
  17. Steering Gear Nut (4) - Install and tighten [2x] - Fastener Specifications
  18. GM5902729Courtesy of GENERAL MOTORS COMPANY

    Steering Linkage Outer Tie Rod Nut (1) - Install and tighten [2x] - Fastener Specifications

  19. GM5902697Courtesy of GENERAL MOTORS COMPANY

    Instal the hose retainers as necessary.

  20. Connect the electrical connectors and install the wiring harness retainers as necessary.
  21. Install the front electric drive transmission module assembly to the front cradle (1).
  22. GM6082035Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

    Rear Drive Motor Rear Mount Bolt (2) - Install NEW [2x]

  23. Drive Motor Mount Nut (1) - Install
  24. 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.

  25. Rear Drive Motor Rear Mount Bolt (2) - Tighten [2x] - Fastener Specifications
  26. GM5902700Courtesy of GENERAL MOTORS COMPANY

    Drive Motor Rear Mount Bracket Bolt (1) - Install NEW and tighten [6x] - Fastener Specifications

  27. GM5903393Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Left side shown, right side similar.

    Output Shaft Seal- Left Side and Right Side (1) - Install NEW [2x]

  28. Output Shaft Retaining Ring- Left Side and Right Side (2) - Install NEW [2x]
  29. GM5840808Courtesy of GENERAL MOTORS COMPANY

    Front Wheel Drive Shaft Washer- Left Side and Right Side (1) - Install [2x]

  30. Apply a thin coating of grease to the splines of the front wheel drive half shafts and front electric drive transmission module output shafts. Adhesives, Fluids, Lubricants, and Sealers
  31. GM5903392Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Left side shown, right side similar.

    Front Wheel Drive Half Shaft- Left Side and Right Side (1) - Install [2x]

  32. GM5903315Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Left side shown, right side similar.

    Front Wheel Drive Shaft Nut- Left Side and Right Side (1) - Install NEW and tighten [2x] - Fastener Specifications

  33. GM5893651Courtesy of GENERAL MOTORS COMPANY

    Remove the following tools from the electric drive transmission:

    • EN-52059  Engine Support Fixture Adapter Bolts - M10 (1)
    • EN-36857  Engine Lift Bracket (2)
    • Overhead Hoist Hooks (3)
  34. GM6082160Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Left side shown, right side similar.

    Battery Negative Cable Extension Cable- Left Side and Right Side (2) - Install [2x]

  35. Battery Negative Cable Ground Bolt- Left Side and Right Side (1) - Install and tighten [2x] - Fastener Specifications
  36. GM5902668Courtesy of GENERAL MOTORS COMPANY

    Install the front electric drive transmission module positive and negative cable (2) to the wiring harness bracket.

  37. Battery Positive Cable Channel Nut (1) - Install and tighten [2x] - Fastener Specifications
  38. GM5902663Courtesy of GENERAL MOTORS COMPANY

    Generator Control Module Coolant Pump Bracket Bolt- Right Side (1) - Install and tighten [2x] - Fastener Specifications 

  39. GM5902657Courtesy of GENERAL MOTORS COMPANY

    Generator Control Module Coolant Pump Bracket Bolt- Left Side (1) - Install and tighten [2x] - Fastener Specifications 

  40. GM5902654Courtesy of GENERAL MOTORS COMPANY

    Engine Wiring Harness Bolt (3) - Install and tighten - Fastener Specifications 

  41. Engine Wiring Harness Ground Bolt (2) - Install and tighten [2x] - Fastener Specifications 
  42. Engine Wiring Harness Retainer (1) @ Front Cradle - Install [3x]
  43. GM6050012Courtesy of GENERAL MOTORS COMPANY

    Install the air conditioning condenser, engine cooling fan and engine radiator as an assembly (1) to the front cradle.

  44. Connect the electrical connectors and install the wiring harness retainers as necessary.
  45. GM5787362Courtesy of GENERAL MOTORS COMPANY

    Drive Motor Control Module Radiator Outlet Hose (2) @ Engine Radiator - Install

  46. Retainer (1) - Engage
  47. GM5795335Courtesy of GENERAL MOTORS COMPANY

    Drive Motor Control Module Radiator Inlet Hose (1) - Install

  48. Retainer (2) - Engage
  49. GM5865279Courtesy of GENERAL MOTORS COMPANY

    Front Cradle (2) - Install - Front Cradle Removal and Installation