Sierra 3500 2WD V8-6.0L VIN U (2004)
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JC3/JH1: Brake Vac/Hydraulic Power Disc, 6,400 lbs
JC4: Brake Vac Power. Disc, 7,200 lbs
JH2: Brake Hydraulic Power, Disc, 7,200 lbs
JH6: Brake Hydraulic Power, 4-Wheel Disc, 9,900 lbs
JH7: Brake Hydraulic Power, 4-Wheel Disc, 12,300 lbs