Hummer H2. Manual — part 2544

Fig. 148: View Of Forward Clutch Plates
Courtesy of GENERAL MOTORS CORP.

10. Remove all forward clutch plates (646, 648, 649A, 649B).

11. Remove the input sun gear bearing assembly (637).

12. Remove the input housing to output shaft seal (636).

13. Remove all overrun clutch plates (645A, 645B).

2004 Hummer H2

2004 TRANSMISSION/TRANSAXLE Automatic Transmission - Overhaul - 4L60-E/4L65-E

Fig. 149: Installing J 23327-1 & J 25018-A
Courtesy of GENERAL MOTORS CORP.

14. Install the J 23327-1 and the J 25018-A .

15. Compress the overrun clutch spring, using the J 23456 .

16. Remove the overrun clutch spring retainer snap ring (635).

17. Remove the J 23327-1 and the J 25018-A .

2004 Hummer H2

2004 TRANSMISSION/TRANSAXLE Automatic Transmission - Overhaul - 4L60-E/4L65-E

Fig. 150: Input Clutch Assembly
Courtesy of GENERAL MOTORS CORP.

18. Remove the overrun clutch spring assembly (634).

19. Remove the overrun clutch piston (632).

20. Remove the forward clutch piston (630).

21. Remove the forward clutch housing (628).

22. Remove the 3rd and 4th clutch spring assembly (626).

23. Remove the 3rd and 4th clutch apply ring (625).

24. Remove the 3rd and 4th clutch piston (623).

2004 Hummer H2

2004 TRANSMISSION/TRANSAXLE Automatic Transmission - Overhaul - 4L60-E/4L65-E

INPUT HOUSING AND SHAFT ASSEMBLY INSPECTION

Fig. 151: Expanded View Of Input Housing
Courtesy of GENERAL MOTORS CORP.

1. Inspect the input housing and shaft assembly for the following items:

z

Porosity

z

Spline wear

z

Three turbine shaft checkballs

z

Retainer and checkball assembly (620)

z

Orificed cup plug (698)

2004 Hummer H2

2004 TRANSMISSION/TRANSAXLE Automatic Transmission - Overhaul - 4L60-E/4L65-E