Operation CHARM
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Chevy Truck
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1991
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C 1500 Truck 2WD V8-454 7.4L
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Repair and Diagnosis
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Transmission and Drivetrain
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Automatic Transmission/Transaxle
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Valve Body
Valve Body
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Locations
4L60 (THM 700-R4) Automatic Transmission
Case Checkballs
Control Valve Body Checkballs
4L80-E Automatic Transmission
Service and Repair
Turbo Hydra-Matic 4L60 (700-R4)
Control Valve Assembly
Auxiliary Valve Body Replace
Control Valve Assembly Replace
Turbo Hydra-Matic 4L80-E & 4L80-Ehd
Diagrams
Specifications
4L80-E / -EHD Transmission
4L60 - 700R4 Transmission
Technical Service Bulletins
