Chevrolet Silverado / GMC Sierra. Manual — part 1116
Tools Required
J 36850 Transjel Lubricant. See Special Tools.
Installation
Fig. 342: View Of Input Internal Gear, Reaction Shaft & Sun Shell
Courtesy of GENERAL MOTORS CORP.
1. Install the reaction sun shell (670) into the reaction sun gear.
2. Install the thrust bearing (669) using J 36850 onto the reaction carrier shaft, tangs up,
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis
Silverado, Sierra & Silverado
toward the shaft. See Special Tools.
3. Install the input internal gear (664) and reaction carrier shaft (666) assembly into the sun
gear shell. Index the reaction carrier shaft spline into the reaction carrier.
INTERNAL TRANSMISSION SPEED SENSOR ROTOR REPLACEMENT
Tools Required
J 8433 Two Jaw Puller. See Special Tools.
J 21427-A Speedometer Gear Puller Adapter
J 36352 Speed Sensor Rotor Installer Kit. See Special Tools.
Removal Procedure
Fig. 343: 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.
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis
Silverado, Sierra & Silverado
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.
Fig. 344: Using J 8433 & J 21427-01 To Remove Internal Speed Sensor Rotor
Courtesy of GENERAL MOTORS CORP.
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis
Silverado, Sierra & Silverado
4. If the internal speed sensor rotor (699) is damaged, replace it.
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. 345: 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.
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis
Silverado, Sierra & Silverado
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