Chevrolet Silverado / GMC Sierra. Manual - part 931
9. Lubricate the 1-2-3-4 clutch piston housing seal (1) with J 36850 . See Special Tools.
Fig. 307: View Of 1-2-3-4 Clutch Piston Housing & 1-2-3-4, 4-5 Clutch Housing
Courtesy of GENERAL MOTORS CORP.
10. Align the 4-5-6 clutch piston return spring assembly (2) so that the notches of the spring
assemblies are facing and aligned with the tangs of the 4-5-6 clutch piston (4).
11. Install the 4-5-6 clutch piston return spring assembly (2) into the 4-5-6 clutch piston (4).
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado
12. Align the 1-2-3-4 clutch piston housing (1) so that the rear of the housing is facing up.
13. Install the 1-2-3-4 clutch piston housing (1) into the 4-5-6 clutch piston (4).
Fig. 308: 1-2-3-4-, 4-5-6 Clutch Housing & J 24204-2
Courtesy of GENERAL MOTORS CORP.
14. Position the 1-2-3-4, 4-5-6 clutch housing (8) on the base of J 24204-2 (10) so that the rear
of the housing is facing up. See Special Tools.
15. Install J-47339-2 (7) onto the shaft of J 24204-2 with the bowl down. See Special Tools.
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado
16. Install the retaining ring (6) onto the surface of J-47339-2 (7). See Special Tools.
17. Install the spring (5) of J-47339-2 onto the shaft of J 24204-2 . See Special Tools.
18. Install J-47339-1 (4) onto the shaft of J 24204-2 . See Special Tools.
19. Install the J 24204-2 ball bearing (3) and washer (2) onto the shaft of J 24204-2 . See
Special Tools.
20. Install the J 24204-2 wing nut (1) onto the shaft of J 24204-2 . See Special Tools.
21. Compress the 4-5-6 clutch piston return spring assembly until the retaining ring groove on
the inner hub of the 1-2-3-4, 4-5-6 clutch housing (8) is visible.
22. Install the retaining ring (6) into the 1-2-3-4, 4-5-6 clutch housing inner hub.
23. Make sure the retaining ring (6) is seated all around the clutch housing (8).
24. Remove all J tools.
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado
Fig. 309: Locating Clutch Piston Seal Rings
Courtesy of GENERAL MOTORS CORP.
25. Install the 1-2-3-4 clutch piston ID seal ring (1) and the 1-2-3-4 clutch piston OD seal ring
(2) onto the 1-2-3-4 clutch piston (3).
26. Lubricate the seal rings with J 36850 . See Special Tools.
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado