Chevrolet Silverado / GMC Sierra. Manual - part 884
Fig. 154: Torque Converter
Courtesy of GENERAL MOTORS CORP.
1. Remove the transmission fluid from torque converter (1).
2. Examine the transmission fluid for the following.
Evidence of foreign matter
Metal particles
Other contaminates
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado
3. If the torque converter is damaged, replace the torque converter.
TORQUE CONVERTER END PLAY INSPECTION
Tools Required
J 43764 Torque Converter End Play Gauge. See Special Tools.
J 5959 Dial Indicator Clamp and Adjuster. See Special Tools.
J 7872 Magnetic Base Dial Indicator
Inspection
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado
Fig. 155: Measuring Torque Converter End Play
Courtesy of GENERAL MOTORS CORP.
1. Position the torque converter (3) on the work table so that the pump hub is facing up.
2. Install J 43764 (2) into the torque converter hub. See Special Tools.
3. Hold J 43764 (2) in the converter hub and rotate the center screw until J 43764 is locked
into the converter hub. See Special Tools. Do not over tighten J 43764 . See Special
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado
Tools.
4. Assemble the following tools and install the tools onto the torque converter as shown:
J 5959 (1). See Special Tools.
Extension rod (7)
Clamp (6)
J 7872 (4)
Adaptor rod (5)
5. Adjust the clamp (6) so that the dial indicator (1) firmly contacts the top of J 43764 (2).
See Special Tools.
6. Set the J 5959 (1) to read zero. See Special Tools.
7. Lift J 43764 (2) upward as far as possible. See Special Tools.
8. Read the J 5959 (1) to determine torque converter end play. See Special Tools.
9. Compare the measured end play with the torque converter end play specifications. Refer to
End Play Specifications .
10. If the measured torque converter end play exceeds the value listed, replace the torque
converter.
11. Remove the J tools from the converter housing.
TORQUE CONVERTER HOUSING WITH FLUID PUMP ASSEMBLY REMOVAL
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado