4 Runner 2WD V6-4.0L (1GR-FE) (2006)
Brake Rotor/Disc: Specifications
Rear
REAR DISC THICKNESS
Using a micrometer, measure the disc thickness.
Standard thickness ........................................................................................................................................................................... 18.0 mm (0.709 inch)
Minimum thickness ......................................................................................................................................................................... 16.0 mm (0.630 inch)