B4000 SE Cab Plus 4WD V6-4.0L OHV (1997)
Brake Drum: Testing and Inspection
1. Check drum inner diameter.
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Standard diameter: Shown on drum
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Maximum diameter: Standard diameter + 0.762 mm (0.030 inch).
NOTE: When repairing or replacing the drum check the contact with the shoe.
2. Scratches, uneven or abnormal wear inside the drum
NOTE: Repair if the problem is minor.