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GMC Truck
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1998
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K 3500 Truck 4WD V8-454 7.4L VIN J SFI
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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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Service and Repair
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Overhaul
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4L80-E Automatic Transmission
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Repair Instructions
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Transmission Oil Pump Body Flatness Check
Transmission Oil Pump Body Flatness Check
Inspect the oil pump body face with a straight edge and a feeler gauge to ensure flatness.
