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GMC Truck
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2013
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Sierra 1500 2WD V8-4.8L
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Repair and Diagnosis
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Transmission and Drivetrain
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Manual Transmission/Transaxle
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Specifications
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Fluid Type Specifications
Fluid Type Specifications
MANUAL TRANSMISSION FLUID
Synchromesh Transmission Fluid (GM Part No. 12345349, in Canada 10953465).