Tools Required

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

J 29837-A Output Shaft Support Fixture. See Special Tools .

Fig 1: View Of Speed Sensor, Retaining Bolt & O-Ring Seal

Courtesy of GENERAL MOTORS CORP.

Remove the sensor retaining bolt (35).
Remove the speed sensor (36) and O-ring seal (37).

Fig 2: Identifying Output Shaft Components

Courtesy of GENERAL MOTORS CORP.

Remove the case extension bolts (32).
Remove the case extension (31) and the case extension to case seal (30).
Remove the output shaft sleeve (690) and the output shaft O-ring seal (691). Not all models use an output shaft sleeve (690) and O-ring seal (691).

Fig 3: Identifying Special Tool J29837-A & Output Shaft O-Ring Seal

Courtesy of GENERAL MOTORS CORP.

IMPORTANT: If the J 29837-A is not used, the output shaft (687) may fall free when the input carrier retaining ring is removed. See Special Tools .

Install the J 29837-A as shown. See Special Tools . Support the output shaft (687) with adjustable stop (1).