Home › Forums › Stay Dirty Lounge › Service and Repair Questions Answered Here › 2009 chevy Traverse Gearbox fluid › Reply To: 2009 chevy Traverse Gearbox fluid April 12, 2021 at 10:21 am #990017 Atheer juafariParticipant thanks Richard , unfortunately i can’t replace the gear filter cause it unaccessable without teardown the gearbox, my transmission type gm(6t75) and what about the valve controller! is the flush enough to clean it