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Home >> Chevrolet >> 2024 >> Tahoe Commercial, 4WD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - 10L80 (MHS MHU MQC) - Repair Instructions - On Vehicle (1 Of 2) >> Repair Instructions - On Vehicle >> Transmission Mount Replacement (F48 - F47) >> Installation Procedure

Installation Procedure

  1. GM5590452Courtesy of GENERAL MOTORS COMPANY

    Transmission Mount (2) - Install

  2. 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. Ensure there are no gaps in the thread locking adhesive once applied to the component.
  3. CAUTION:

    Refer to Fastener Caution

  4. Transmission Mount Bolt (1) - Install and tighten [2x] - Fastener Specifications
  5. GM5587680Courtesy of GENERAL MOTORS COMPANY

    Transmission Support Crossmember (1) - Install

  6. GM5587684Courtesy of GENERAL MOTORS COMPANY

    Transmission Support Crossmember Bolt (3) - Install [4x]

  7. Transmission Support Crossmember Nut (2) - Install and tighten [4x] - Fastener Specifications
  8. Transmission Mount Nut (1) - Install and tighten [2x] - Fastener Specifications
  9. Remove the transmission jack.
  10. GM5590117Courtesy of GENERAL MOTORS COMPANY

    If equipped, position the wiring harness (2) as necessary then install the harness into the 3 wiring harness retainers (1).

  11. GM4968633Courtesy of GENERAL MOTORS COMPANY

    {If equipped} Transfer Case Skid Shield (2) - Install

  12. {If equipped} Transfer Case Skid Shield Bolt (1) - Install and tighten [3x] - Fastener Specifications
  13. Lower the vehicle.