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Chevrolet Silverado / GMC Sierra. Manual - part 1168
Tighten: Tighten the bolt to 12 N.m (9 lb ft).
Fig. 530: Locating Case Extension Oil Seal Assembly
Courtesy of GENERAL MOTORS CORP.
IMPORTANT: If installing a slip yoke (booted) type seal (34), position drain
hole (1) toward the bottom of transmission within area
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis
Silverado, Sierra & Silverado
8. Using the J 21426 and J 39440 or equivalent, install the case extension oil seal assembly
(34) (model dependent). See Special Tools.
TORQUE CONVERTER END PLAY INSPECTION
Tools Required
J 8001 Dial Indicator Set. See Special Tools.
J 26900-13 Magnetic Indicator Base. See Special Tools.
J 35138 Converter End Play Checker. See Special Tools.
J 39195 Converter End Play Check Tool. See Special Tools.
Inspection
shown.
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis
Silverado, Sierra & Silverado
Fig. 531: Identifying J 35138, J 26900-13 & J 8001
Courtesy of GENERAL MOTORS CORP.
1. Inspect the torque converter and replace if any of the following conditions exist:
Evidence of damage to the pump assembly.
Metal particles are found after flushing the cooler and cooler lines.
External leaks in the hub area.
Converter pilot is broken, damaged or poor fit into the crankshaft.
Converter hub is scored or damaged.
Internal damage to the stator.
Contamination from engine coolant.
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis
Silverado, Sierra & Silverado
Excessive end play.
2. Install the J 35138 , the J 26900-13 and the J 8001 or J 39195 to be used with the 300 mm
torque converter. See Special Tools.
Specification:
The end play for a 245 mm torque converter should be 0-0.38 mm (0-0.015 in).
The end play for a 298 mm torque converter should be 0.1-0.48 mm (0.004-0.019 in).
The end play for a 258 mm and 300 mm torque converter should be 0.1-0.5 mm
(0.004-0.020 in).
3. Remove the tools.
TORQUE CONVERTER INSTALLATION
Tools Required
J 21366 Converter Holding Strap. See Special Tools.
Installation
IMPORTANT: The torque converter should not be replaced if the fluid has
an odor, discoloration or no evidence of metal or clutch plate
material.
Flushing the torque converter is not recommended.
CAUTION: The torque converter weighs approximately 65 lbs.
Personal injury may result if you lift the torque converter
improperly.
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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