Toyota Tundra. Manual — part 982

Fig. 77: Identifying Matchmarks On Rear Disc And Axle Hub
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b. Turn the shoe adjuster until the disc turns freely, and then remove the disc.

Fig. 78: Turning Shoe Adjuster
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

DISASSEMBLY

1. REMOVE REAR DISC BRAKE BLEEDER PLUG CAP

2. REMOVE REAR DISC BRAKE BLEEDER PLUG

3. REMOVE CYLINDER BOOT

a. Using a screwdriver, remove the cylinder boot from the cylinder.

HINT:

Tape the screwdriver tip before use.

2009 Toyota Tundra

2009 BRAKES Brake - Tundra

Fig. 79: Removing Cylinder Boot
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

4. REMOVE REAR DISC BRAKE PISTON

a. Place a piece of cloth or a similar object between the piston and cylinder.

b. Use compressed air to remove the piston from the cylinder.

Fig. 80: Removing Piston Using Compressed Air
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

5. REMOVE PISTON SEAL

a. Using a screwdriver, remove the piston seal from the cylinder.

HINT:

Tape the screwdriver tip before use.

CAUTION: Do not place your fingers in front of the piston when using

compressed air.

NOTE:

Do not damage the inner cylinder and cylinder groove.

2009 Toyota Tundra

2009 BRAKES Brake - Tundra

Fig. 81: Removal/Installation Of Piston Seal
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

INSPECTION

1. CHECK PAD LINING THICKNESS

a. Using a ruler, measure the pad lining thickness.

Standard thickness: 12.0 mm (0.472 in.)

Minimum thickness: 1.0 mm (0.0394 in.)

If the pad lining thickness is less than the minimum, replace the pad.

HINT:

Be sure to check the wear on the rear disc after replacing the brake pad with a new one.

Fig. 82: Measuring Pad Lining Thickness
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2. CHECK DISC THICKNESS

a. Temporarily install the disc with the 3 hub nuts.

b. Using a micrometer, measure the disc thickness.

Standard thickness: 18.0 mm (0.709 in.)

Minimum thickness: 16.0 mm (0.630 in.)

2009 Toyota Tundra

2009 BRAKES Brake - Tundra

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

Fig. 83: Measuring Disc Thickness
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

3. CHECK DISC RUNOUT

a. Using SST to hold the disc, fix the disc in place with the 5 hub nuts.

SST 09330-00021

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)

Fig. 84: Holding Disc Using SST
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b. Using a dial indicator, measure the disc runout at a position 10 mm (0.394 in.) from the outside

edge.

Maximum disc runout: 0.2 mm (0.00787 in.)

2009 Toyota Tundra

2009 BRAKES Brake - Tundra