Previa Van DX 4WD L4-2438cc 2.4L DOHC SC MFI (1997)
Brake Drum: Testing and Inspection
Fig. 3 Measuring Brake Drum Inside Diameter
INSIDE DIAMETER
1. Using a vernier calipers, measure the inside diameter of the Drum.
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Standard inside diameter: 254.0 mm (10.00 inch)
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Maximum inside diameter: 256.0 mm (10.18 inch)
2. If the Drum is scored or worn, the Brake Drum may be lathed to the maximum inside diameter.
PROPER CONTACT
If the contact between the brake lining and drum is improper, repair the lining with a brake shoe grinder, or replace the brake shoe assembly.