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
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