Tundra 4WD V8-4.7L (2UZ-FE) (2003)
d. Using vernier calipers, measure the slip ring diameter.
Standard diameter: 14.2-14.4 mm (0.559-0.567 in.) Minimum diameter: 14.0 mm (0.551 in.)
If the diameter is less than minimum, replace the rotor
2. INSPECT BRUSHES
Using vernier caliper, measure the exposed brush length.
Standard exposed length: 10.5 mm (0.413 in.) Minimum exposed length: 4.5 mm (0.177 in.)
If the exposed length is less than minimum, replace the brushes and brush holder assembly.
3. INSPECT BEARING
Check the bearing is not rough or worn.
If necessary, replace the bearing.