Toyota Tundra. Manual — part 1030

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

12. ADJUST RING GEAR BACKLASH

a. Install the plate washer on the ring gear back side.

Fig. 150: Installing Plate Washer On Ring Gear Back Side
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b. Tap on the ring gear with a plastic-faced hammer so that the washer fits to the bearing.

Fig. 151: Tapping On Ring Gear With Plastic Hammer
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

c. Using a dial indicator, while holding the companion flange, measure the ring gear backlash.

Standard backlash (reference): 0.10 to 0.20 mm (0.00394 to 0.00788 in.)

NOTE:

Make sure that the ring gear has backlash.

2009 Toyota Tundra

2009 DRIVELINE/AXLES Differential - Tundra

Fig. 152: Measuring Ring Gear Backlash
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

d. Select a ring gear back side plate washer using the backlash as a reference.

Fig. 153: Installing Plate Washer On Ring Gear Back Side
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

e. Select a ring gear teeth side plate washer so that there is no clearance between the outer race and

case.

f. Remove the 2 plate washers and differential case.

g. Install the plate washer on the ring gear back side.

Fig. 154: Installing Plate Washer On Ring Gear Back Side
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

h. Place the other plate washer onto the differential case together with the outer race, and install the

differential case with the outer race into the carrier.

2009 Toyota Tundra

2009 DRIVELINE/AXLES Differential - Tundra

i. Tap on the ring gear with a plastic-faced hammer so that the washers fit to the bearing.

Fig. 155: Installing Plate Washer On Ring Gear Back Side
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

j. Using a dial indicator, while holding the companion flange, measure the ring gear backlash.

Standard backlash: 0.10 to 0.20 mm (0.00394 to 0.00788 in.)

If the backlash is not within the specification values, adjust it by either increasing or decreasing the
thickness of washers on both sides by an equal amount.

Fig. 156: Measuring Ring Gear Backlash
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

HINT:

There should be no clearance between the plate washer and the case. Make sure that there is ring
gear backlash.

13. ADJUST SIDE BEARING PRELOAD

a. Remove the ring gear teeth side plate washer and using a micrometer, measure the thickness.

2009 Toyota Tundra

2009 DRIVELINE/AXLES Differential - Tundra

Fig. 157: Measuring Side Plate Washer Thickness
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b. Install the selected plate washer.

c. Using the backlash as a reference, tap a new washer that is 0.05 to 0.20 mm (0.00197 to 0.00787

in.) thicker than the removed washer so that it fits to the bearing.

HINT:

Select a washer which can be pressed in 2/3 of the full amount with your finger.

d. Using a plastic-faced hammer, install the plate washer.

e. Recheck the ring gear backlash.

Standard backlash: 0.10 to 0.20 mm (0.00394 to 0.00788 in.)

If the backlash is not within the specification, adjust it by either increasing or decreasing the
thickness of washers on both sides by an equal amount.

Fig. 158: Checking Ring Gear Backlash
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

HINT:

The backlash will change by about 0.02 mm (0.000787 in.), corresponding to a 0.03 mm (0.00118
in.) change in the plate washer.

Washer thickness

2009 Toyota Tundra

2009 DRIVELINE/AXLES Differential - Tundra