Chevrolet Silverado / GMC Sierra. Service manual — part 1130

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

with a steel plate (654B).

Fig. 391: Illustrating Clutch Plate Assembly
Courtesy of GENERAL MOTORS CORP.

4. Continue the stack up if seven 654A plates are used.

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

as the 3rd and 4th clutch apply plate (653).

IMPORTANT: The 3rd and 4th clutch plate stack is model specific. Clutch

plate stack up could be either 6 or 7 plates.

2008 Chevrolet Silverado 1500

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

Silverado, Sierra & Silverado

Fig. 392: Identifying 3-4 Clutch Boost Spring Assemblies
Courtesy of GENERAL MOTORS CORP.

5. Inspect the five 3-4 clutch boost spring assemblies (600) for damaged, worn, broken or

missing springs. Springs must be held securely by retainer.

6. Install the 3-4 clutch boost spring assemblies (600) into the input housing.

2008 Chevrolet Silverado 1500

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

Silverado, Sierra & Silverado

Fig. 393: Locating 3rd & 4th Clutch Selective Backing Plate & Retainer Ring
Courtesy of GENERAL MOTORS CORP.

7. Install the 3rd and 4th clutch selective backing plate (655). Some models may have a

chamfer on one side of the selective backing plate. Install the chamfer side up.

8. Install the 3rd and 4th clutch backing plate retainer ring (656).

2008 Chevrolet Silverado 1500

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

Silverado, Sierra & Silverado

3-4 CLUTCH PLATE TRAVEL CHECK

Fig. 394: Checking 3rd & 4th Clutch Plate Travel
Courtesy of GENERAL MOTORS CORP.

1. Use feeler gauges to check the 3rd and 4th clutch plate travel.

2. Check the travel between the selective backing plate (655) and the first fiber plate assembly

(654A).

The 3rd and 4th clutch plate travel should be:

2008 Chevrolet Silverado 1500

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

Silverado, Sierra & Silverado