Chevrolet Silverado / GMC Sierra. Service manual — part 920

Fig. 270: Identifying Stacking Sequence Of Clutch Plates
Courtesy of GENERAL MOTORS CORP.

14. Remove six 1-2-3-4 clutch fiber plates (1) and six 1-2-3-4 clutch steel plates (2) from the

turbine shaft (3).

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

Fig. 271: Locating Turbine Shaft & Overlap Seal Rings
Courtesy of GENERAL MOTORS CORP.

CAUTION: Personal injury and/or property damage may result from

the movement of the 1-2-3-4, 4-5-6 clutch housing or the
turbine shaft. The 1-2-3-4, 4-5-6 clutch housing and
turbine shaft are held together by a retaining ring.
Removing the retaining ring allows the turbine shaft and
the 1-2-3-4, 4-5-6 clutch housing to move freely. When
removing the retaining ring, make sure the 1-2-3-4, 4-5-6

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

15. Remove the retaining ring (1) from the turbine shaft (3).

16. Remove the 1-2-3-4, 4-5-6 clutch housing (2) from the rear of the turbine shaft.

17. Remove 2 overlap seal rings (4) from the turbine shaft.

Fig. 272: Positioning 1-2-3-4, 4-5-6 Clutch Housing On Base Of J 24204-2
Courtesy of GENERAL MOTORS CORP.

18. Position the 1-2-3-4, 4-5-6 clutch housing (5) on the base of J 24204-2 (6) so that the rear

clutch housing and the turbine shaft are restrained from
moving.

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

of the housing is facing up. See Special Tools.

19. Install J-47339-1 (4) onto the 1-2-3-4 clutch balance piston. See Special Tools.

20. Install the J 24204-2 ball bearing (3) and washer (2) onto the shaft of J 24204-2 . See

Special Tools.

21. Install the J 24204-2 wing nut (1) onto the shaft of J 24204-2 (6). See Special Tools.

Fig. 273: 1-2-3-4-, 4-5-6 Clutch Housing & J 24204-2
Courtesy of GENERAL MOTORS CORP.

22. Compress the 1-2-3-4 clutch balance piston return spring assembly until the retaining ring

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado