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Fig. 360: Input Clutch Assembly 18. Remove the overrun clutch spring assembly (634). 19. Remove the overrun clutch piston (632). 20. Remove the forward clutch piston (630). 21. Remove the forward clutch housing (628). 22. Remove the 3rd and 4th clutch spring assembly (626). 23. Remove the 3rd and 4th clutch apply ring (625).
2008 Chevrolet Silverado 1500 2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
24. Remove the 3rd and 4th clutch piston (623). INPUT HOUSING AND SHAFT ASSEMBLY INSPECTION Fig. 361: Identifying Input Housing & Shaft Assembly 1. Inspect the input housing and shaft assembly for the following conditions: Porosity Spline wear - internal and external
2008 Chevrolet Silverado 1500 2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Input speed sensor models, rotor teeth for cracks or damage Three turbine shaft ball check valves are present and move freely Retainer and ball check valve assembly (620) Orificed cup plug (698) Lube hole cracks 2. Test the input housing for cracks by tapping housing with wooden handle. Housing should produce a sharp ring. 3. Inspect the turbine shaft oil seal ring (619) grooves for damage or burrs. The oil seal rings (619) must fit loose into the ring grooves. Fig. 362: Identifying Oil Feed Passages
2008 Chevrolet Silverado 1500 2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
4. Inspect the oil feed passages for obstructions. 5. Apply compressed air into the passages indicated. INPUT HOUSING AND SHAFT ASSEMBLY ASSEMBLE Tools Required J 23327-1 Forward Clutch Spring Compressor (Bridge). See Special Tools. J 23456 Booster and Clutch Pack Compressor. See Special Tools. J 25018-A Clutch Spring Compressor Adapter. See Special Tools. J 26744-A Seal Installer. See Special Tools. J 29882 Overrun Clutch Seal Protector. See Special Tools. J 29883 Forward Clutch Seal Protector. See Special Tools. Assemble
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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