Chevrolet Silverado / GMC Sierra. Manual - part 919
Fig. 266: Identifying Bronze Thrust Washer With Holes
Courtesy of GENERAL MOTORS CORP.
5. Remove the bronze thrust washer (1) from the 4-5-6 drive hub (2).
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado
Fig. 267: Identifying 4-5 Drive Hub, Thrust Bearing Assembly & Turbine Shaft
Courtesy of GENERAL MOTORS CORP.
6. Remove the 4-5-6 drive hub (1).
7. Remove the thrust bearing assembly (2) from the rear of the 1-2-3-4 clutch drive hub (3) or
the front of the 4-5-6 clutch drive hub (1).
8. Remove the 1-2-3-4 clutch drive hub (3).
IMPORTANT: The thrust bearing assembly may stick to the 1-2-3-4 clutch
drive hub or the 4-5-6 clutch drive hub.
IMPORTANT: The thrust bearing assembly may stick to the rear of the
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado
9. Remove the thrust bearing assembly (4) from the rear of the turbine shaft (5) or the front of
the 1-2-3-4 clutch drive hub (3).
Fig. 268: Identifying Clutch Plate Stacking Sequence
Courtesy of GENERAL MOTORS CORP.
10. Remove seven 4-5-6 clutch steel plates (1) and six 4-5-6 clutch fiber plates (2) from the 1-2-
3-4, 4-5-6 clutch housing (3).
turbine shaft or the front of the 1-2-3-4 clutch drive hub.
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado
Fig. 269: View Of 1-2-3-4 Clutch Backing Plate
Courtesy of GENERAL MOTORS CORP.
11. Remove the internal spiral retaining ring (1) from the 1-2-3-4 clutch backing plate (3).
12. Remove the retaining ring (2) from the turbine shaft (4).
13. Remove the 1-2-3-4 clutch backing plate (3) from the turbine shaft (4).
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado