INTERNAL TRANSMISSION SPEED SENSOR ROTOR REPLACEMENT Tools Required

• J 8433 Two Jaw Puller

• J 21427-A Speedometer Gear Puller Adapter. See Special Tools.

• J 36352 Speed Sensor Rotor Installer Kit. See Special Tools.

Removal Procedure

Fig. 296: Identifying Output Shaft Seal & Output Shaft Sleeve Courtesy of GENERAL MOTORS CORP.

1. Inspect the internal transmission speed sensor rotor (699) for cracks or damaged teeth.

2. Inspect all splines on the output shaft (687) for cracks or damaged splines.

3. Remove the output shaft seal (691) and the output shaft sleeve (690) (model dependent) 2WD units only.

INTERNAL TRANSMISSION SPEED SENSOR ROTOR REPLACEMENT Tools Required

Fig. 297: Using J 8433 & J 21427-01 To Remove Internal Speed Sensor Rotor Courtesy of GENERAL MOTORS CORP.

5. Using J 8433 with J 21427-01 , remove the internal speed sensor rotor (699) from the output shaft (687). See Special Tools.

Installation Procedure

Fig. 298: Pressing Internal Speed Sensor Rotor Onto Output Shaft Courtesy of GENERAL MOTORS CORP.

IMPORTANT: Do not re-use an internal speed sensor rotor that has been removed.

1. Slip a new internal speed sensor rotor (699) over the output shaft splines.

2. Install the J 36352-4 in the groove on the output shaft (687). See Special Tools.

3. Place the J 36352-6 on the output shaft (687). See Special Tools. Press on the J 36352-6 until it contacts the J 36352-4 in the window (the J 36352-4 will be a positive stop for the J 36352-6 ).

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