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If the disc's runout is at the maximum value or greater, check the rear axle hub bearing looseness Fig. 85: Measuring Disc Runout 4. ADJUST DISC RUNOUT a. Remove the 2 bolts and rear disc brake cylinder mounting from the backing plate. b. Remove the hub nuts and disc. Rotate the disc 1/5 of a turn from its original position on the hub, and install the disc with the hub nuts. Torque: for Aluminum Wheel 131 N*m (1336 kgf*cm, 97 ft.*lbf) for Steel Wheel 209 N*m (2131 kgf*cm, 154 ft.*lbf) c. Remeasure the disc runout. Make a note of the runout and the disc's position on the hub. d. Repeat the 2 previous steps until the disc has been installed on the 3 remaining hub positions. If the minimum runout recorded above is less than 0.2 mm (0.00787 in.), install the disc in that position. REASSEMBLY 1. INSTALL PISTON SEAL a. Apply a light coat of lithium soap base glycol grease to the entire inner and outer circumference of a new piston seal. b. Install the piston seal to the disc brake cylinder.
2009 Toyota Tundra 2009 BRAKES Brake - Tundra
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