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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 198 (Manual Transmission - TREMEC 6-Speed (M3L Mg9)) >> Repair Instructions - Off Vehicle >> Transmission Case and Clutch Housing Disassemble (MG9) >> Transmission Case

Transmission Case

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Cooler Line Return Fitting, Transmission Case Fill Plug & Coolant Temperature Sensor
    GM2102250Courtesy of GENERAL MOTORS COMPANY
  1. Remove the cooler line return fitting (1).
  2. Remove the transmission case fill plug (2).
  3. Remove the coolant temperature sensor (3).
  4. Fig 2: Dowel Pins
    GM2102252Courtesy of GENERAL MOTORS COMPANY
  5. Remove the dowel pins (1).
  6. Fig 3: Removing Countershaft Bearing Race
    GM2102253Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Do not replace the bearing race unless inspection shows bearing race damage.

  7. Remove the countershaft bearing race (3), using the J 8092  drive handle (1) and the J 39790-A  race remover (2).
  8. Fig 4: Removing Mainshaft Bearing Race
    GM2102254Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Do not replace the bearing race unless inspection shows bearing race damage.

  9. Remove the mainshaft bearing race (3), using the J 8092  drive handle (1) and the J 39790-A  race remover (2).
  10. Fig 5: Removing 1st/2nd & 3rd/4th Shift Shaft Bearing
    GM2102255Courtesy of GENERAL MOTORS COMPANY
  11. Remove the 1st/2nd and the 3rd/4th shift shaft bearing (3), using the J 36190  driver handle (1) and the J 44384  remover (2).