Remove the snap ring (A), the cotter retainer (B), and the cotters (C) from the idler gear shaft (D), then remove the idler gear shaft. Do not distort the snap ring.

Check the snap ring and the cotter retainer for wear and damage. Replace the snap ring and/or the cotter retainer if the snap ring or the cotter retainer is worn, distorted, or damaged.
Install the idler gear shaft in the idler gear shaft bearing.
Install the cotters and cotter retainer, and secure the idler gear shaft with the snap ring.
Output Shaft (Countershaft) Speed Sensor Replacement (M/T)
M/T
Raise the vehicle on a lift.
Disconnect the output shaft (countershaft) speed sensor connector (A).
Remove the output shaft (countershaft) speed sensor (B).
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Body
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Interior Care
Use a damp cloth with a mixture of mild detergent and warm water to remove
dirt.
Use a clean cloth to remove detergent residue.
Do not spill liquids inside the vehicle.
Electrical devices and ...