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Brake Drum|Testing and Inspection > < Brakes - Rotor/Drum Refinishing Labor Operations|Page 11459
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Brake Drum: Specifications

Brake Drum Discard Inside Diameter .................................................................................................................................................  231.00 mm (9.094 in)
Brake Drum Inside Diameter (new) ...................................................................................................................................................  230.125 mm (9.060 in)
Brake Drum Maximum Allowable Radial Runout ................................................................................................................................  0.104 mm (0.004 in)
Brake Drum Maximum Allowable Scoring .................................................................................................................................................  1.5 mm (0.06 in)
Brake Drum Maximum Inside Diameter After Refinish ......................................................................................................................  230.50 mm (9.075 in)

 

Brake Drum|Testing and Inspection > < Brakes - Rotor/Drum Refinishing Labor Operations|Page 11459