Chevrolet Silverado / GMC Sierra. Service 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