Chevrolet Silverado / GMC Sierra. Manual

fiber plate assembly (682C), with the identification side up.

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

1. Install the waved plate.

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis

Silverado, Sierra & Silverado

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

assembly and alternating with steel.

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

LOW AND REVERSE CLUTCH SUPPORT DISASSEMBLE

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis

Silverado, Sierra & Silverado

Fig. 326: Low and Reverse Clutch Support Components
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

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis

Silverado, Sierra & Silverado

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.

Fig. 327: Identifying Low And Reverse Roller Clutch Assembly

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis

Silverado, Sierra & Silverado

Chevrolet Silverado / GMC Sierra. Manual - part 1111