Inspection [03/2017 - 05/2023]: Procedure

INSPECT BRAKE CYLINDER AND PISTON
1. Check the rear disc brake cylinder assembly bore and rear disc brake piston for rust and scoring. If necessary, replace the rear disc brake cylinder assembly and rear disc brake piston.
INSPECT PAD LINING THICKNESS
1. Using a ruler, measure the rear disc brake pad lining thickness.
  Standard Thickness
  
  11.5 mm (0.453 in.)
  
  Minimum Thickness
  
  1.0 mm (0.0394 in.)
  
  If a rear disc brake pad lining thickness is less than the minimum thickness, replace the rear disc brake pads.
  
  HINT:
  
  Be sure to check the rear disc thickness when replacing the rear disc brake pads with new ones.
INSPECT REAR DISC BRAKE ANTI-RATTLE SPRING
1. Make sure that the rear disc brake anti-rattle spring has sufficient rebound, no deformation, cracks or wear, and that all rust and dirt is cleaned off.
  If necessary, replace the rear disc brake anti-rattle spring.

INSPECT DISC THICKNESS

Using a micrometer, measure the rear disc thickness.

Standard Thickness

30.0 mm (1.181 in.)

Minimum Thickness

28.0 mm (1.102 in.)

If the rear disc thickness is less than the minimum thickness, replace the rear disc.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*a	Micrometer

INSPECT DISC RUNOUT

Inspect the rear axle hub bearing looseness and rear axle hub runout.
- Inspect rear axle hub bearing looseness:
  Refer to PROCEDURE - Step 6
- Inspect rear axle hub runout:
  Refer to PROCEDURE - Step 7
Hold the rear disc, tighten the rear disc with the 5 hub nuts.
Torque: 140 N.m (1428 kgf/cm, 103 ft.lbf)

Using a dial indicator, measure the disc runout 10 mm (0.394 in.) from the outer edge of the rear disc.

Maximum Disc Runout

0.04 mm (0.00157 in.)

*a	Dial Indicator

NOTE:

Keep the magnet of the dial indicator away from the rear axle hub and bearing assembly and rear speed sensor.

HINT:

If the runout exceeds the maximum value, change the installation position of the rear disc to minimize the runout. If the runout exceeds the maximum even when the installation position is changed, grind the rear disc. If the rear disc thickness is less than the minimum, replace the rear disc.

Remove the 5 hub nuts and rear disc.