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The Chevy TrailBlazer requires a 36mm hex socket to remove the main clutch nut. You'll typically use a 1/2" drive socket and ratchet for this task due to the high torque on these large bolts. If your clutch is experiencing issues, it could indicate worn plates inside, necessitating replacement. To replace the plates, you'll have to detach the clutch assembly from the vehicle.
The inquiry involves a specific nut that secures the fan clutch to the water pump. Using a socket to manipulate this nut is not feasible. Typically, two separate tools are required: one to prevent the water pump pulley from rotating and another to extract the nut. You can opt to purchase specialized tools for this task or improvise with existing tools. The nut in question has a size of 36mm. Disregard the initial response as the author may have misunderstood the query or lacks expertise in fan clutch removal.
I'm confused about how you would be able to use a wrench on a bolt without first attaching a socket?
The fan clutch nut size for the Chevy TrailBlazer is 36 millimeters in diameter.
Thanks a million!