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GMC Truck
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2009
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Sierra 1500 4WD V8-4.8L
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Repair and Diagnosis
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Brakes and Traction Control
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Drum Brake System
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Specifications
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Drum Brake Component Specifications
Drum Brake Component Specifications
Drum Brakes
Maximum Allowable Diameter
296.5 mm (11.673 in)
Maximum Allowable Radial Runout
0.06 mm (0.0024 in)
Maximum Allowable Scoring
1.5 mm (0.06 in)