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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 (RWL - F47) >> Installation Procedure

Installation Procedure

  1. GM5587069Courtesy 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. GM5587449Courtesy of GENERAL MOTORS COMPANY

    Transmission Support Crossmember (1) - Install

  6. GM5587388Courtesy 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 - Fastener Specifications
  9. GM5565710Courtesy of GENERAL MOTORS COMPANY

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

  10. Remove the transmission jack.
  11. Lower the vehicle.