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Home >> Hummer >> 2008 >> H2 4D Utility Pickup >> Repair and Diagnosis >> Transmission >> Hydraulic Diagrams >> Automatic Transmission - 6L50/6L80/6L90 - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis >> Off-Vehicle Repair Instructions >> 4-5-6 Clutch Overhaul (6L80) >> 4-5-6 Clutch Piston Installation

4-5-6 Clutch Piston Installation

Fig 1: 4-5-6 Clutch Piston Installation
GM1555336Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 4-5-6 Clutch Piston Assembly
2 4-5-6 Clutch Spring
NOTE: Ensure the spring tabs are facing up during installation. Failure to do so may cause damage to the clutch assembly.
3 4-5-6 Clutch Piston Dam Assembly
Tip:  Lubricate the inner and outer sealing surfaces of the dam assembly with automatic transmission fluid (ATF) in order to ease installation into the piston.
4 4-5-6 Clutch Piston Dam Retaining Ring
NOTE: Use care when compressing the 4-5-6 clutch piston assembly, spring and dam assembly. Compressing the dam assembly too much may damage it.
NOTE: Refer to Retaining Ring Reuse Notice .

Tip:  Apply air to verify proper installation of all 4-5-6 clutch components. The piston should apply and release smoothly.
Special Tool: 
J 43074  Clutch Spring Compressor. See Special Tools .