Hummer H2. Manual - part 2318

7. Remove the forward clutch backing plate retainer ring (651).  

8. Remove the forward clutch selective backing plate (650).  

9. Remove the forward clutch sprag assembly. 

Fig. 303: Forward Clutch Components (2 Of 2) 
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). 

 

2004 Hummer H2 

2004 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E (Introduction) - Hummer H2

  

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

Fig. 304: View Of J 23327-1 & J 25018-A 
Courtesy of GENERAL MOTORS CORP. 

14. Install the J 23327-1 and the J 25018-A . See Special Tools and Equipment .  

15. Compress the overrun clutch spring, using the J 23456 . See Special Tools and Equipment .  

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

17. Remove the J 23327-1 and the J 25018-A . See Special Tools and Equipment . 

 

2004 Hummer H2 

2004 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E (Introduction) - Hummer H2

  

Fig. 305: Overrun Clutch Spring Assembly Components 
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 Automatic Transmission - 4L60-E/4L65-E (Introduction) - Hummer H2

  

INPUT HOUSING AND SHAFT ASSEMBLY INSPECTION

Fig. 306: Inspecting Input Housing & Shaft Assembly 
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 Automatic Transmission - 4L60-E/4L65-E (Introduction) - Hummer H2