1998 Toyota 4Runner Repair Question
Toyota 4Runner Axle Problem
Remove the rear wheel and the brake drum. Torque: 110 Nm (83 ft. lbs.) .
Check the bearing backlash and the axle shaft deviation.
Using a dial indicator, check the backlash in the bearing shaft direction. Maximum: 0.7 mm (0.027 inch) .
If the backlash exceeds the maximum, replace the bearing.
Using a dial indicator, check the deviation at the surface of the axle shaft outside the hub bolt. Deviation: 0.1 mm (0.0039 inch) .
If the deviation exceeds the maximum, replace the axle shaft.
w/ ABS: Remove the ABS speed sensor from rear axle housing.
Torque: 8.0 Nm (71 inch lbs.) .
Remove the rear brake assembly.
Remove the rear axle shaft assembly.
Remove the four backing plate mounting nuts. Torque: 66 Nm (48 ft. lbs.) .
Pull out the rear axle shaft assembly from the rear axle housing.
NOTICE: Be careful not to damage the oil seal.
Remove the O-ring from the rear axle housing.
w/ ABS: Remove the bearing retainer (differential side) and the ABS speed sensor rotor by performing the following.
Attach four nuts to the serration bolts and remove the serration bolts from the backing plate using a hammer.
NOTICE: Do not reuse the nuts previously removed from the vehicle.
Grind the retainer and sensor rotor surfaces using a grinder, then chisel them out with a chisel.
Attach washers and nuts to the four serration bolts, then torque the nuts to install the serration bolts to the backing plate.
Remove the four nuts from the serration bolts.
Remove snap ring from axle shaft. Using a snap ring expander, remove the snap ring from the axle shaft.
Remove the rear axle shaft from the backing plate, doing the following.
Position Special Service Tool (SST) 09521-25011 on the backing plate with the four nuts.
Using a press, remove the rear axle shaft with the bearing retainer from the backing plate.
Remove the SST.
Inspect the axle shaft. Maximum runout:
Shaft Runout: 2.0 mm (0.079 inch) .
Flange Runout: 0.1 mm (0.004 inch) .
If the rear axle shaft or flange are damaged or worn, or if runout is greater than the maximum, replace the rear axle shaft.
Remove outer oil seal. Using the SST 09308-00010, remove the outer oil seal.
Replace the rear axle bearing.
Using the SST 09223-56010, 09950-60010 (09951-00560) and a press, remove the bearing.
Using the SST 09515-30010, 09950-60020 (09951-00890) and a press, install a new bearing.
Install new outer oil seal. Using the SST 09950-60010 (09951-00610), 09951-70010 (09951-07150) and a hammer, install a new outer oil seal.
Replace the bearing case.
Remove the oil seal (outer side) and bearing.
Install four nuts to the serration bolts.
Using a hammer, remove the four serration bolts and remove the bearing case.
Position the backing plate on a new bearing case and, using two socket wrenches and a install the four serration bolts.
Install a new bearing and (outer side) oil seal.
Replace the (inner side) oil seal.
Using the SST 09308-0010, remove the oil seal.
Using the SST 09950-60020 (09951-00710), 09950-70010 (09951-07150) and a hammer, install a new oil seal.
Apply MP grease to the oil seal lip.
Install the rear axle shaft in the backing plate.
Apply MP grease to the oil seal lip.
Install the backing plate and bearing retainer on the rear axle shaft.
Using the SST 09316-60010 (09316-00050) and a press, install the rear axle shaft into the backing plate.
Using snap ring pliers, install a new snap ring.
w/ ABS: Install ABS speed sensor rotor and bearing retainer (Differential Side)
Using the SST 09316-60010 (09316-00050) and a press, install a new ABS speed sensor rotor and new bearing retainer to the axle shaft.
Standard length: 122.2 ±1.0 mm (4.811 ±0.039 inch) .
Install in the reverse order of removal. After installation, bleed the brake system and check the ABS speed sensor signal and check for leaks.
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