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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 Disassemble (MG9) >> Countershaft Gear Removal

Countershaft Gear Removal

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: Countershaft Retainer Ring
    GM1887622Courtesy of GENERAL MOTORS COMPANY
  1. Remove the counter shaft retainer ring.
  2. Fig 2: Removing Countershaft Gear
    GM2102208Courtesy of GENERAL MOTORS COMPANY
  3. Remove the countershaft gear (2) using J-22888-20A  puller (1).
  4. Fig 3: Countershaft Retainer And Spacer
    GM1887531Courtesy of GENERAL MOTORS COMPANY
  5. Remove the countershaft retainer and spacer.
  6. Fig 4: Gear & Countershaft
    GM1887533Courtesy of GENERAL MOTORS COMPANY
  7. Remove the gear from the countershaft.
  8. Fig 5: Needle Bearing & Countershaft
    GM1887534Courtesy of GENERAL MOTORS COMPANY
  9. Remove the needle bearing from the countershaft.
  10. Fig 6: Spacer & Countershaft
    GM1887536Courtesy of GENERAL MOTORS COMPANY
  11. Remove the spacer from the countershaft.
  12. Fig 7: Retainer Clip & Countershaft
    GM1887537Courtesy of GENERAL MOTORS COMPANY
  13. Remove the retainer clip from the countershaft.
  14. Fig 8: 5th/6th Speed Shift Fork Retainer Ring
    GM1887535Courtesy of GENERAL MOTORS COMPANY
  15. Remove the 5th/6th speed shift fork retainer ring.