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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 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 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 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 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
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