Hummer H2. Manual - part 2326

6. Install the forward clutch backing plate retainer ring (651).  

FORWARD CLUTCH PISTON TRAVEL CHECK 

Fig. 333: Forward Clutch Backing Plate Retainer Ring & Forward Clutch Selective Backing Plate 
Courtesy of GENERAL MOTORS CORP. 

1. Use feeler gauges to check the forward clutch plate travel. Check travel between the forward clutch 

backing plate retainer ring (651) and the forward clutch selective backing plate (650). 

The forward clutch plate travel should be:

 

2004 Hummer H2 

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

  

Specification: 298 mm/300 mm Torque Converter- 0.866-1.876 mm (0.034-0.074 in) 

2. Select the proper forward clutch selective backing plate (650) to obtain the correct travel. Refer to 

Forward Clutch Backing Plate Selection .  

3-4 CLUTCH ASSEMBLE 

Fig. 334: Inspecting (653), (654A), (654B), & (655) 
Courtesy of GENERAL MOTORS CORP. 

1. Inspect the 3rd and 4th clutch apply plate (653), the fiber plate assemblies (654A), the steel plates (654B) 

IMPORTANT: The part 654A may have 5, 6 or 7 plates.

 

2004 Hummer H2 

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

  

and the selective backing plate (655) for the following conditions: 

z

Damaged tangs  

z

Delamination  

z

Excessive wear  

z

Heat damage or wear  

z

Surface finish  

z

Flatness  

Fig. 335: Installing 3rd & 4th Clutch Apply Plate Into Input Housing 
Courtesy of GENERAL MOTORS CORP. 

2. Install the 3rd and 4th clutch apply plate (653) into the input housing. Index each leg of the apply plate 

into the apply ring legs. 

 

2004 Hummer H2 

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

  

3. Install the 3rd and 4th clutch plates starting with a fiber plate assembly (654A) and alternate with a steel 

plate (654B). 

IMPORTANT: The first steel plate (654B) has the same spline configuration as the 3rd 

and 4th clutch apply plate (653).

IMPORTANT: The M30 RPO 3-4 clutch plate stack up is 5 fiber plates, and 6 fiber plates 

on all other models. The M32 RPO (heavy-duty design) uses 7 fiber plates. 
These fiber plates are a thinner thickness which can not be used in a M30 
stack up. M32 fiber plates must not be used in a M30 design.

NOTE:

The correct number of fiber plates must be used to avoid damage to the 
transmission. An incorrect stack up height can cause either excessive 
clutch slippage or insufficient release, resulting in burned clutch plates.

 

2004 Hummer H2 

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