Hummer H3. Manual — part 807

The overall height for the clutch pack including the selective spacer plate should be 29.23-
29.90 mm (1.15-1.18 in).

LOW AND REVERSE CLUTCH PLATE INSTALLATION

Fig. 278: Illustrating Steel Plate Spline Alignment
Courtesy of GENERAL MOTORS CORP.

1. Install the waved plate.

2. Install the correct selective spacer plate (from the selection procedure).

3. Install the five fiber plate assemblies and four steel plates, starting with one fiber plate

2007 Hummer H3

2007 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - H3

assembly and alternating with steel.

4. Index the steel plate splines in the case as shown.

LOW AND REVERSE CLUTCH SUPPORT DISASSEMBLE

Fig. 279: Low and Reverse Clutch Support Components

2007 Hummer H3

2007 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - H3

Courtesy of GENERAL MOTORS CORP.

1. Remove the low and reverse roller clutch race (675) from the low and reverse clutch

support (679). Inspect the race for damage and surface finish.

2. Remove the two low and reverse roller retainer rings (677) and the low and reverse roller

clutch assembly (678). Inspect the roller clutch assembly for damaged rollers and broken
springs.

3. Inspect the low and reverse clutch support (679) for loose cam and cam surface finish.

Check the support for cracks and damaged lugs.

2007 Hummer H3

2007 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - H3

Fig. 280: Identifying Low And Reverse Roller Clutch Assembly
Courtesy of GENERAL MOTORS CORP.

4. Clean and install the low and reverse roller clutch assembly (678) into the low and reverse

clutch support (679). Install the low and reverse retainer ring (677).

2007 Hummer H3

2007 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - H3