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GMC Truck
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1989
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R 2500 P/U 2WD L6-292 4.8L
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Repair and Diagnosis
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Specifications
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Mechanical Specifications
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Brake Drum
Brake Drum
Drum Diameter
Original Size
11.0
11.15
12.0
13.0
Maximum Refinish
11.06
11.21
12.06
13.06
Discard
11.09
11.24
12.09
13.09