Check the play of the release bearing by spinning it by hand. If there is excessive play or noise, replace the release bearing.

NOTE: The release bearing is packed with grease. Do not wash it in solvent.
Fluid Locations
...
A/T Differential Backlash Inspection (A/T)
Install the driveshaft and intermediate shaft into the differential
assembly, and place the axles on V-blocks (A).
Measure the backlash of the pinion gears (B) wit ...
Vents, Heating, and A/C
* : If equipped
Airflow Controls
Fan Control Dia
Turn this dial to increase or decrease the fan speed and airflow.
Temperature Control Dial
Turning this dial clockwise increases the temperature ...