Rear Hub Unit Bearing: Installation

Place the back plate - rear brake between the housing assembly - rear axle and the hub unit COMPL - rear axle, and tighten the bolt.
CAUTION:
- Be careful not to damage the magnetic encoder.
- Do not get closer the tool which charged magnetism to magnetic encoder.
Fig 1: Identifying Magnetic Encoder And Hub Unit COMPL - Rear Axle
Courtesy of SUBARU OF AMERICA, INC.

Tightening torque:

65 N.m (6.63 kgf-m, 47.9 ft-lb)

Fig 2: Locating Housing ASSY - Rear Axle Bolts
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Install the rear drive shaft assembly.
CAUTION:
- Do not hammer the drive shaft assembly when installing.
- Use new nut - axle.
1. Insert the drive shaft assembly into the hub spline, and pull it into the specified position.
2. Temporarily tighten the nut - axle.
Install the disc rotor to the hub unit COMPL - rear axle.
Install the caliper body assembly and the brake hose bracket.
Tightening torque:

Brake hose bracket: 33 N.m (3.36 kgf-m, 24.3 ft-lb)

Mounting bolt: 66 N.m (6.73 kgf-m, 48.7 ft-lb)
Install the rear ABS wheel speed sensor.
Tightening torque:

7.5 N.m (0.76 kgf-m, 5.5 ft-lb)
While depressing the brake pedal, tighten new nuts - axle to the specified torque.
CAUTION: Do not load the rear axle before tightening the nut - axle. Doing so may damage the hub unit COMPL.

Tightening torque:

190 N.m (19.37 kgf-m, 140.1 ft-lb)
After tightening the nut - axle, lock it securely.

Fig 3: Tightening Axle Nut
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Install the rear wheels, and perform the following inspections.
Tightening torque:

120 N.m (12.24 kgf-m, 88.5 ft-lb)
1. Check the wheels for smooth rotation.
2. Check that there is no looseness by moving the upper and lower portions of rear tire in an axial direction with the brake pedal released.
  - Looseness exists → Check the hub unit COMPL - rear axle. Ref. to DRIVE SHAFT SYSTEM>Rear Hub Unit Bearing>INSPECTION .

Fig 4: Checking Rear Tire Looseness

Courtesy of SUBARU OF AMERICA, INC.