REAR SUSPENSION
RS
  1. General Description
  2. Wheel Alignment
  3. Trailing Link
  4. Rear Lateral Link (front)
  5. Rear Lateral Link (rear)
  6. Sub Frame
  7. Stabilizer
  8. Upper Arm
  9. Rear Shock Absorber
  10. General Diagnostic Table
REAR SUSPENSION > General Description　
SPECIFICATION

Suspension height

−73 (−2.87)

(Tolerance: +12 mm−24 mm (+0.47in−0.94in))

mm (in)

Camber (tolerance: ±0°45′ Differences between RH and LH: 45′ or less)

−0°50′

Toe-in

mm (in)

IN3±3 (IN0.12±0.12)

Toe angle (sum of both wheels): IN0°15′±15′

Thrust angle (tolerance: 0°00′±30′)

0°00′
 

  • Adjust with the value less than the inspection value, taking aging variation into consideration.

  • Front toe-in, rear toe-in and front camber can be adjusted. Adjust if the value of toe-in or camber exceeds the tolerance range of the specification chart.

  • Other items except for front toe-in, rear toe-in and front camber that are described in the specification chart cannot be adjusted.

  • If other items exceed the tolerance range of the specification chart, check the suspension parts and connections for deformation. If defective, replace them with new parts.

A − B = Positive: Toe-in, Negative: Toe-out

α = Individual toe angles

REAR SUSPENSION > General Description　
COMPONENT
1. REAR SUSPENSION

(1)

Sub frame ASSY rear

(11)

Stabilizer link rear

Tightening torque: N·m (kgf-m, ft-lb)

(2)

Stopper upper

(12)

Bushing stabilizer rear

T1:

30 (3.1, 22.1)

(3)

Support sub frame front

(13)

Clamp stabilizer

T2:

35 (3.6, 25.8)

(4)

Flange bolt A

(14)

Rear axle housing

T3:

38 (3.9, 28.0)

(5)

Self-locking nut

(15)

Bushing trailing link

T4:

70 (7.1, 51.6)

(6)

Stopper lower

(16)

Rear lateral link ASSY rear

T5:

82.5 (8.4, 60.8)

(7)

Stabilizer rear

(17)

Bushing link rear

T6:

85 (8.7, 62.7)

(8)

Bracket COMPL stabilizer

(18)

Flange bolt B

T7:

100 (10.2, 73.8)

(9)

Flange nut

(19)

Trailing link ASSY rear

T8:

145 (14.8, 106.9)

(10)

Shock absorber ASSY rear

(20)

Flange bolt C

(1)

Sub frame ASSY rear

(8)

Band link protector

Tightening torque: N·m (kgf-m, ft-lb)

(2)

Self-locking nut

(9)

Link protector

T1:

60 (6.1, 44.3)

(3)

Adjusting bolt

(10)

Arm ASSY rear upper

T2:

80 (8.2, 59.0)

(4)

Adjusting washer

(11)

Flange nut

T3:

90 (9.2, 66.4)

(5)

Bushing lateral link front

(12)

Washer

T4:

100 (10.2, 73.8)

(6)

Rear lateral link ASSY front

(13)

Rear axle housing

(7)

Snap pin

(14)

Flange bolt
2. REAR SHOCK ABSORBER

(1)

Flange nut

(5)

Helper rear

Tightening torque: N·m (kgf-m, ft-lb)

(2)

Self-locking nut

(6)

Coil spring rear

T1:

25 (2.5, 18.4)

(3)

Mount shock absorber rear

(7)

Shock absorber COMPL rear

T2:

30 (3.1, 22.1)

(4)

Dust cover rear
REAR SUSPENSION > General Description　
CAUTION
REAR SUSPENSION > General Description　
PREPARATION TOOL
1. SPECIAL TOOL

ILLUSTRATION

TOOL NUMBER

DESCRIPTION

REMARKS

20099AE000

INSTALLER & REMOVER

Used for replacing the bushing lateral link front.

20099AE010

INSTALLER & REMOVER

Used for replacing the bushing link rear.

20099FG000

BUSHING REMOVER

  • Used for replacing the bushing trailing link of rear axle housing.

  • Used together with base part of INSTALLER & REMOVER (20099PA010).

20099PA010

INSTALLER & REMOVER

  • Used for replacing the bushing trailing link of rear axle housing.

  • Used together with BUSHING REMOVER (20099FG000).

20399FG000

STRUT MOUNT SOCKET

  • Used for disassembling and assembling strut assembly and shock absorber assembly rear.

  • Used for checking center nut torque of strut assembly and shock absorber assembly rear.

—

SUBARU SELECT MONITOR 4

Used for setting of each function and troubleshooting for electrical system.

 

For detailed operation procedures, refer to “Help” of application.

925091000

BAND TIGHTENING TOOL

Used for tightening the boot band.

(A) Jig for the band

(B) Ratchet wrench
2. GENERAL TOOL

TOOL NAME

REMARKS

Alignment tester

Used for measuring wheel alignment.

Coil spring compressor

Used for disassembling and assembling strut assembly and shock absorber assembly rear.

Jack

Used for removing and installing suspension.

Ball joint puller

Used for disconnecting the rear lateral link assembly front.

Toe-in gauge

Used for toe-in measurement.

Bearing puller

Used for removing bushings.

Dial gauge

Used for measuring the runout of shock absorber COMPL rear.

Magnet stand

Used for measuring the runout of shock absorber COMPL rear.

DST-i

Used together with Subaru Select Monitor 4.
REAR SUSPENSION > Wheel Alignment　
INSPECTION
 

For wheel alignment, measure or adjust the front and rear wheels at a time. Refer to “Wheel Alignment” in “FRONT SUSPENSION” section for measurement and adjustment procedures of wheel alignment.

REAR SUSPENSION > Trailing Link　
REMOVAL
1.

Lift up the vehicle, and then remove the rear wheels.

2.

Remove the nuts and remove the adapter cord EPB.

3.

Remove the bolts and nuts, and then remove the trailing link assembly rear.

REAR SUSPENSION > Trailing Link　
INSTALLATION
 

  • For parts which are not reusable, always use new parts.

  • Always tighten the bushing in the state where the vehicle is at curb weight and the wheels are in full contact with the ground.

1.

Install the trailing link assembly rear.

Tightening torque:

On flange bolt side: 100 N·m (10.2kgf-m, 73.8ft-lb)

2.

Install the adapter cord EPB.

Tightening torque:

18 N·m (1.8kgf-m, 13.3ft-lb)

3.

Install the rear wheels and lower the vehicle.

Tightening torque:

120 N·m (12.2kgf-m, 88.5ft-lb)

REAR SUSPENSION > Trailing Link　
DISASSEMBLY

Using the ST, push out the bushing trailing link.

Preparation tool:

ST‐A: BUSHING REMOVER (20099FG000)

ST‐B: INSTALLER & REMOVER (20099PA010)

REAR SUSPENSION > Trailing Link　
ASSEMBLY
1.

Before assembly, inspect the following items and replace any faulty part with a new one.

  • Perform visual check for damage or bend on the trailing link assembly rear.

  • Visually check the bushing for abnormal cracks, fatigue or damage.

2.

Using the ST‐A and ST‐B, press-fit the bushing trailing link.

 

Make sure to press the bushing straight in.

Preparation tool:

ST‐A: BUSHING REMOVER (20099FG000)

ST‐B: INSTALLER & REMOVER (20099PA010)

REAR SUSPENSION > Rear Lateral Link (front)　
REMOVAL
1. REAR LATERAL LINK ASSEMBLY FRONT
1.

Lift up the vehicle, and then remove the rear wheels.

2.

Remove the trailing link assembly rear. REAR SUSPENSION>Trailing Link>REMOVAL

3.

Remove the rear lateral link assembly front.

(1)

Remove the snap pin (a), nut (b), and washer (c).

(2)

Disconnect the rear axle housing and the ball joint (d).

 

Securely hook the ball joint puller (e) to the collar (f).

Preparation tool:

Ball joint puller

(3)

Put alignment marks (i) on the adjusting bolt for the rear lateral link assembly front and on the sub frame assembly rear.

(4)

Remove the adjusting bolt (h), and remove the rear lateral link assembly front.

 

When removing the adjusting bolt (h), make sure to fix the bolt head in place when loosening the nut (g).

2. LINK PROTECTOR
 

  • When removing/installing the link protector of the rear lateral link assembly front, do not remove the rear lateral link assembly front.

  • When cutting the band link protector, be careful not to damage the adjacent parts.

1.

Lift up the vehicle, and then remove the rear wheels.

2.

Remove the nuts and remove the adapter cord EPB.

3.

Cut off the band link protector.

4.

Remove the link protector.

REAR SUSPENSION > Rear Lateral Link (front)　
INSTALLATION
1. REAR LATERAL LINK ASSEMBLY FRONT
 

  • For parts which are not reusable, always use new parts.

  • Always tighten the bushing in the state where the vehicle is at curb weight and the wheels are in full contact with the ground.

  • Check if the collar is protruding from the rear axle housing.

  • If the collar comes off from the rear axle housing, replace the rear axle housing with a new part.

1.

Before installation, inspect the following items and replace any faulty part with a new one.

  • Visually check the rear lateral link assembly front for damage and deformation.

  • Visually check the bushing for abnormal cracks, fatigue or damage.

  • Visually check the boot on the ball joint for abnormal cracks, fatigue or damage.

2.

Install the rear lateral link assembly front.

 

  • When installing the adjusting bolt (h), make sure to fix the bolt head in place and tighten it the nut side (g).

  • Align alignment marks (i) on the adjusting bolt for the rear lateral link assembly front and on the sub frame assembly rear.

 

Do not forget to install the washer.

Tightening torque:

Refer to “COMPONENT” of “General Description” for the tightening torque. REAR SUSPENSION>General Description>COMPONENT > REAR SUSPENSION

3.

Install the trailing link assembly rear.

Tightening torque:

On flange bolt side: 100 N·m (10.2kgf-m, 73.8ft-lb)

4.

Install the adapter cord EPB.

Tightening torque:

18 N·m (1.8kgf-m, 13.3ft-lb)

5.

Install the rear wheels and lower the vehicle.

Tightening torque:

120 N·m (12.2kgf-m, 88.5ft-lb)

6.

Inspect the wheel alignment and adjust if necessary.

7.

Perform the following adjustments using Subaru Select Monitor.

2. LINK PROTECTOR
1.

Before installation, inspect the following items and replace any faulty part with a new one.

  • Visually check the rear lateral link assembly front for damage and deformation.

  • Visually check the bushing for abnormal cracks, fatigue or damage.

  • Visually check the boot on the ball joint for abnormal cracks, fatigue or damage.

2.

Install the link protector.

 

  • Use a new link protector and a new band link protector.

  • When installing the link protector, pay close attention to the identification marks and shapes of the link protector on the RH and LH sides.

  • Check that there is no dirt or oil on the rear lateral link assembly front. If any dirt or oil is found, clean it.

  • When installing the link protector, be careful not to damage the adjacent parts.

  • After installing the link protector, make sure that the rubber is firmly fitted.

(1)

Temporarily install the band link protector.

Preparation items:

Part No.: Band link protector (20694FL000)

 

  • When installing temporarily, be careful not to damage the adjacent parts.

  • The parts cannot be removed after the band link protector is installed on the head part, so be sure to wind the band while being careful that the head part faces outside.

(2)

Tighten the band using the ST.

Preparation tool:

ST: BAND TIGHTENING TOOL (925091000)

 

Tighten until the link protector does not move by hand.

(3)

Cut off the excess part of the band link protector.

 

When cutting off, be careful not to damage the adjacent parts.

3.

Install the adapter cord EPB.

Tightening torque:

18 N·m (1.8kgf-m, 13.3ft-lb)

4.

Install the rear wheels and lower the vehicle.

Tightening torque:

120 N·m (12.2kgf-m, 88.5ft-lb)

REAR SUSPENSION > Rear Lateral Link (front)　
DISASSEMBLY

Using the ST, push out the bushing lateral link front.

Preparation tool:

ST‐A & ST‐B: INSTALLER & REMOVER (20099AE000)

REAR SUSPENSION > Rear Lateral Link (front)　
ASSEMBLY
1.

Before assembly, inspect the following items and replace any faulty part with a new one.

  • Visually check the rear lateral link assembly front for damage and deformation.

  • Visually check the bushing for abnormal cracks, fatigue or damage.

  • Visually check the boot on the ball joint for damage.

2.

Using the ST, press-fit the bushing lateral link front.

 

Make sure to press the bushing straight in.

Preparation tool:

ST‐A & ST‐B: INSTALLER & REMOVER (20099AE000)

REAR SUSPENSION > Rear Lateral Link (rear)　
REMOVAL
1.

Lift up the vehicle, and then remove the rear wheels.

2.

Remove the rear lateral link assembly rear.

(1)

Remove the bolts and nuts, and remove the lower side of shock absorber assembly rear.

(2)

Remove the bolts and nuts, and remove the rear lateral link assembly rear.

REAR SUSPENSION > Rear Lateral Link (rear)　
INSTALLATION
 

  • For parts which are not reusable, always use new parts.

  • Always tighten the bushing in the state where the vehicle is at curb weight and the wheels are in full contact with the ground.

1.

Before installation, inspect the following items and replace any faulty part with a new one.

  • Visually check the rear lateral link assembly rear for damage and deformation.

  • Visually check the bushing for abnormal cracks, fatigue or damage.

2.

Install the rear lateral link assembly rear.

Tightening torque:

Refer to “COMPONENT” of “General Description” for the tightening torque. REAR SUSPENSION>General Description>COMPONENT > REAR SUSPENSION

3.

Install the rear wheels and lower the vehicle.

Tightening torque:

120 N·m (12.2kgf-m, 88.5ft-lb)

4.

Inspect the wheel alignment and adjust if necessary.

5.

Perform the following adjustments using Subaru Select Monitor.

REAR SUSPENSION > Rear Lateral Link (rear)　
DISASSEMBLY

Using the ST, push out the bushing link rear.

Preparation tool:

ST‐A & ST‐B: INSTALLER & REMOVER (20099AE010)

REAR SUSPENSION > Rear Lateral Link (rear)　
ASSEMBLY
1.

Before assembly, inspect the following items and replace any faulty part with a new one.

  • Visually check the rear lateral link assembly rear for damage and deformation.

  • Visually check the bushing for abnormal cracks, fatigue or damage.

2.

Using the ST, press-fit the bushing link rear.

Preparation tool:

ST‐A & ST‐B: INSTALLER & REMOVER (20099AE010)

REAR SUSPENSION > Sub Frame　
REMOVAL
1.

Release the parking brake.

2.

Using the Subaru Select Monitor, perform the brake maintenance mode. PARKING BRAKE>Parking Brake System>OPERATION > BRAKE MAINTENANCE MODE

3.

Disconnect the ground terminal from battery sensor. REPAIR CONTENTS>NOTE > BATTERY

4.

Lift up the vehicle, and then remove the rear wheels.

5.

Remove the protector tank. FUEL INJECTION (FUEL SYSTEMS)(H4DO)>Fuel Tank Protector>REMOVAL

6.

Remove the rear exhaust pipe. EXHAUST(H4DO)>Rear Exhaust Pipe>REMOVAL

7.

Remove the propeller shaft. PROPELLER SHAFT / DRIVE SHAFT / AXLE>Propeller Shaft>REMOVAL

8.

Disconnect the stabilizer link rear (lower part). REAR SUSPENSION>Stabilizer>REMOVAL

9.

Remove the clip and bolt on the harness clamp, and remove the sensor sub assembly rear.

 

  • Be careful not to damage the sensor.

  • Do not apply excessive force to the sensor harness.

10.

Remove the disc brake assembly rear and brake disc rear. BRAKE>Rear Disc Rotor>REMOVAL

11.

Disconnect the adapter cord EPB.

(1)

Remove the clamp (a).

(2)

Remove the clamp (b).

12.

Remove the bolts and nuts, and remove the lower side of shock absorber assembly rear.

13.

Remove the rear suspension assembly.

(1)

Support the rear suspension assembly using a transmission jack.

 

The rear suspension assembly is heavy. Make sure that it is firmly supported so that it is level.

(2)

Remove the bolts, and remove the left and right support sub frame fronts.

(3)

Remove the rear suspension assembly.

 

While checking there is no dragging of harness and wire, lower it slowly with a transmission jack.

14.

As necessary, remove each part from the sub frame assembly rear.

REAR SUSPENSION > Sub Frame　
INSTALLATION
 

  • For parts which are not reusable, always use new parts.

  • Always tighten the bushing in the state where the vehicle is at curb weight and the wheels are in full contact with the ground.

  • During the installation, make sure that the marking of sensor sub assembly rear does not twist.

  • Check if the collar is protruding from the rear axle housing.

  • If the collar comes off from the rear axle housing, replace the rear axle housing with a new part.

1.

Check the removed parts for wear, damage and crack, and repair or replace them if faulty.

2.

Install each part to the sub frame assembly rear.

3.

Install the rear suspension assembly.

(1)

Lift the rear suspension assembly using a transmission jack.

(2)

Install the support sub frame front on the left and right sides, and install the rear suspension assembly.

 

  • The rear suspension assembly is heavy. Make sure that it is firmly supported so that it is level.

  • While checking there is no dragging of harness and wire, raise it slowly with a transmission jack.

Tightening torque:

Refer to “COMPONENT” of “General Description” for the tightening torque. REAR SUSPENSION>General Description>COMPONENT > REAR SUSPENSION

4.

Install the bolts and nuts on lower side of shock absorber assembly rear.

Tightening torque:

85 N·m (8.7kgf-m, 62.7ft-lb)

5.

Install the adapter cord EPB.

Tightening torque:

18 N·m (1.8kgf-m, 13.3ft-lb)

6.

Install the disc brake assembly rear and brake disc rear. BRAKE>Rear Disc Rotor>INSTALLATION

7.

Install the sensor sub assembly rear.

Tightening torque:

7.5N·m (0.8kgf-m, 5.5ft-lb)

8.

Install the stabilizer link rear (lower part). REAR SUSPENSION>Stabilizer>INSTALLATION

9.

Install the propeller shaft. PROPELLER SHAFT / DRIVE SHAFT / AXLE>Propeller Shaft>INSTALLATION

10.

Install the rear exhaust pipe. EXHAUST(H4DO)>Rear Exhaust Pipe>INSTALLATION

11.

Install the protector tank. FUEL INJECTION (FUEL SYSTEMS)(H4DO)>Fuel Tank Protector>INSTALLATION

12.

Install the rear wheels and lower the vehicle.

Tightening torque:

120 N·m (12.2kgf-m, 88.5ft-lb)

13.

Connect the ground terminal to battery sensor. REPAIR CONTENTS>NOTE > BATTERY

14.

Using the Subaru Select Monitor, exit the brake maintenance mode. PARKING BRAKE>Parking Brake System>OPERATION > BRAKE MAINTENANCE MODE

15.

After the operation is completed, apply and release the parking brake five times and ensure that the brake operates normally.

16.

Inspect the wheel alignment and adjust if necessary.

17.

Perform the following adjustments using Subaru Select Monitor.

REAR SUSPENSION > Sub Frame　
INSPECTION

Check the removed parts for wear, damage and crack, and repair or replace them if faulty.

REAR SUSPENSION > Stabilizer　
REMOVAL
1. STABILIZER LINK
1.

Lift up the vehicle, and then remove the rear wheels.

2.

Remove the stabilizer link rear on the left and right sides.

2. STABILIZER BUSHING
1.

Lift up the vehicle, and then remove the rear wheels.

2.

Remove the bolts holding the bracket COMPL stabilizer on the left and right sides.

3.

Remove the clamp stabilizer on the left and right sides.

4.

Remove the bushing stabilizer rear.

3. STABILIZER
1.

Release the parking brake.

2.

Using the Subaru Select Monitor, perform the brake maintenance mode. PARKING BRAKE>Parking Brake System>OPERATION > BRAKE MAINTENANCE MODE

3.

Disconnect the ground terminal from battery sensor. REPAIR CONTENTS>NOTE > BATTERY

4.

Lift up the vehicle, and then remove the rear wheels.

5.

Remove the rear suspension assembly. REAR SUSPENSION>Sub Frame>REMOVAL

6.

Remove the stabilizer rear.

REAR SUSPENSION > Stabilizer　
INSTALLATION
 

  • For parts which are not reusable, always use new parts.

  • Always tighten the bushing in the state where the vehicle is at curb weight and the wheels are in full contact with the ground.

1. STABILIZER LINK
1.

Before installation, inspect the following items and replace any faulty part with a new one.

Check the stabilizer link rear for damage.

2.

Install the stabilizer link rear.

Tightening torque:

38 N·m (3.9kgf-m, 28.0ft-lb)

3.

Install the rear wheels and lower the vehicle.

Tightening torque:

120 N·m (12.2kgf-m, 88.5ft-lb)

2. STABILIZER BUSHING
1.

Before installation, inspect the following items and replace any faulty part with a new one.

Check the bushing stabilizer rear for abnormal cracks, fatigue or damage.

2.

Install the bushing stabilizer rear.

3.

Install the clamp stabilizer.

Tightening torque:

30 N·m (3.1kgf-m, 22.1ft-lb)

4.

Install the bracket COMPL stabilizer.

 

To prevent damage to the vehicle body, place a cloth, etc. between the bracket COMPL stabilizer and the vehicle body. After tightening nuts to specified torque, be sure to remove the cloth, etc.

Tightening torque:

35 N·m (3.6kgf-m, 25.8ft-lb)

5.

Install the rear wheels and lower the vehicle.

Tightening torque:

120 N·m (12.2kgf-m, 88.5ft-lb)

3. STABILIZER
1.

Before installation, inspect the following items and replace any faulty part with a new one.

  • Check the bushing stabilizer rear for abnormal cracks, fatigue or damage.

  • Check the stabilizer link rear for damage.

2.

Install the clamp stabilizer.

Tightening torque:

30 N·m (3.1kgf-m, 22.1ft-lb)

3.

Install the rear suspension assembly.

(1)

Lift the rear suspension assembly using a transmission jack.

(2)

Install the support sub frame front on the left and right sides, and install the rear suspension assembly.

 

  • The rear suspension assembly is heavy. Make sure that it is firmly supported so that it is level.

  • While checking there is no dragging of harness and wire, raise it slowly with a transmission jack.

Tightening torque:

Refer to “COMPONENT” of “General Description” for the tightening torque. REAR SUSPENSION>General Description>COMPONENT

4.

Install the bolts and nuts on lower side of shock absorber assembly rear.

Tightening torque:

85 N·m (8.7kgf-m, 62.7ft-lb)

5.

Install the stabilizer link rear.

Tightening torque:

38 N·m (3.9kgf-m, 28.0ft-lb)

6.

Install the adapter cord EPB.

Tightening torque:

18 N·m (1.8kgf-m, 13.3ft-lb)

7.

Install the disc brake assembly rear and brake disc rear. BRAKE>Rear Disc Rotor>INSTALLATION

8.

Install the sensor sub assembly rear.

Tightening torque:

7.5N·m (0.8kgf-m, 5.5ft-lb)

9.

Install the propeller shaft. PROPELLER SHAFT / DRIVE SHAFT / AXLE>Propeller Shaft>INSTALLATION

10.

Install the rear exhaust pipe. EXHAUST(H4DO)>Rear Exhaust Pipe>INSTALLATION

11.

Install the protector tank. FUEL INJECTION (FUEL SYSTEMS)(H4DO)>Fuel Tank Protector>INSTALLATION

12.

Install the rear wheels and lower the vehicle.

Tightening torque:

120 N·m (12.2kgf-m, 88.5ft-lb)

13.

Connect the ground terminal to battery sensor. REPAIR CONTENTS>NOTE > BATTERY

14.

Using the Subaru Select Monitor, exit the brake maintenance mode. PARKING BRAKE>Parking Brake System>OPERATION > BRAKE MAINTENANCE MODE

15.

After the operation is completed, apply and release the parking brake five times and ensure that the brake operates normally.

16.

Inspect the wheel alignment and adjust if necessary.

17.

Perform the following adjustments using Subaru Select Monitor.

REAR SUSPENSION > Upper Arm　
REMOVAL
1.

Release the parking brake.

2.

Using the Subaru Select Monitor, perform the brake maintenance mode. PARKING BRAKE>Parking Brake System>OPERATION > BRAKE MAINTENANCE MODE

3.

Disconnect the ground terminal from battery sensor. REPAIR CONTENTS>NOTE > BATTERY

4.

Lift up the vehicle, and then remove the rear wheels.

5.

Remove the rear suspension assembly. REAR SUSPENSION>Sub Frame>REMOVAL

6.

Remove the arm assembly rear upper.

REAR SUSPENSION > Upper Arm　
INSTALLATION
 

  • For parts which are not reusable, always use new parts.

  • Always tighten the bushing in the state where the vehicle is at curb weight and the wheels are in full contact with the ground.

  • Check if the collar is protruding from the rear axle housing.

  • If the collar comes off from the rear axle housing, replace the rear axle housing with a new part.

1.

Before installation, inspect the following items and replace any faulty part with a new one.

  • Visually check the arm assembly rear upper for damage and deformation.

  • Visually check the bushing for abnormal cracks, fatigue or damage.

  • Visually check the boot on the ball joint for abnormal cracks, fatigue or damage.

2.

Install the arm assembly rear upper.

(1)

Make the installation sections of the rear lateral link assembly rear (the bolt on the rear axle housing side and the bolt on the sub frame assembly rear side) horizontal.

(2)

Install the arm assembly rear upper to the sub frame assembly rear.

Tightening torque:

Arm assembly rear upper — sub frame assembly rear: 90 N·m (9.2kgf-m, 66.4ft-lb)

3.

Connect the arm assembly rear upper and the rear axle housing.

Tightening torque:

Arm assembly rear upper — rear axle housing: 80 N·m (8.2kgf-m, 59.0ft-lb)

4.

Install the rear suspension assembly.

(1)

Lift the rear suspension assembly using a transmission jack.

(2)

Install the support sub frame front on the left and right sides, and install the rear suspension assembly.

 

  • The rear suspension assembly is heavy. Make sure that it is firmly supported so that it is level.

  • While checking there is no dragging of harness and wire, raise it slowly with a transmission jack.

Tightening torque:

Refer to “COMPONENT” of “General Description” for the tightening torque. REAR SUSPENSION>General Description>COMPONENT > REAR SUSPENSION

5.

Install the bolts and nuts on lower side of shock absorber assembly rear.

Tightening torque:

85 N·m (8.7kgf-m, 62.7ft-lb)

6.

Install the adapter cord EPB.

Tightening torque:

18 N·m (1.8kgf-m, 13.3ft-lb)

7.

Install the disc brake assembly rear and brake disc rear. BRAKE>Rear Disc Rotor>INSTALLATION

8.

Install the sensor sub assembly rear.

Tightening torque:

7.5N·m (0.8kgf-m, 5.5ft-lb)

9.

Install the stabilizer link rear (lower part). REAR SUSPENSION>Stabilizer>INSTALLATION

10.

Install the propeller shaft. PROPELLER SHAFT / DRIVE SHAFT / AXLE>Propeller Shaft>INSTALLATION

11.

Install the rear exhaust pipe. EXHAUST(H4DO)>Rear Exhaust Pipe>INSTALLATION

12.

Install the protector tank. FUEL INJECTION (FUEL SYSTEMS)(H4DO)>Fuel Tank Protector>INSTALLATION

13.

Install the rear wheels and lower the vehicle.

Tightening torque:

120 N·m (12.2kgf-m, 88.5ft-lb)

14.

Connect the ground terminal to battery sensor. REPAIR CONTENTS>NOTE > BATTERY

15.

Using the Subaru Select Monitor, exit the brake maintenance mode. PARKING BRAKE>Parking Brake System>OPERATION > BRAKE MAINTENANCE MODE

16.

After the operation is completed, apply and release the parking brake five times and ensure that the brake operates normally.

17.

Inspect the wheel alignment and adjust if necessary.

18.

Perform the following adjustments using Subaru Select Monitor.

REAR SUSPENSION > Rear Shock Absorber　
REMOVAL
1.

Remove the mat floor center, mat floor rear side, cover trunk and spacer rear floor side.

2.

Remove the cap rear suspension.

3.

Lift up the vehicle, and then remove the rear wheels.

4.

Remove the bolts and nuts, and lower the rear lateral link assembly rear.

(1)

Remove the bolts and nuts from the lower side of the shock absorber assembly rear.

(2)

Disconnect the rear axle housing and the rear lateral link assembly rear.

5.

Remove the nuts on the upper side of shock absorber assembly rear.

6.

Lower the rear lateral link assembly rear, and remove the shock absorber assembly rear.

REAR SUSPENSION > Rear Shock Absorber　
INSTALLATION
 

  • For parts which are not reusable, always use new parts.

  • Always tighten the bushing in the state where the vehicle is at curb weight and the wheels are in full contact with the ground.

1.

Install the shock absorber assembly rear.

(1)

Lower the rear lateral link assembly rear, and place the shock absorber assembly rear in position.

(2)

Install the upper side of shock absorber assembly rear.

Tightening torque:

30 N·m (3.1kgf-m, 22.1ft-lb)

(3)

Install the bolts on the lower side of shock absorber assembly rear.

Tightening torque:

85 N·m (8.7kgf-m, 62.7ft-lb)

(4)

Install the rear lateral link assembly rear.

Tightening torque:

82.5N·m (8.4kgf-m, 60.8ft-lb)

2.

Install the rear wheels and lower the vehicle.

Tightening torque:

120 N·m (12.2kgf-m, 88.5ft-lb)

3.

Install the cap rear suspension.

4.

Install the spacer rear floor side, cover trunk, mat floor rear side and mat floor center.

5.

Inspect the wheel alignment and adjust if necessary.

6.

Perform the following adjustments using Subaru Select Monitor.

REAR SUSPENSION > Rear Shock Absorber　
DISASSEMBLY
1.

Using a coil spring compressor, compress the coil spring.

2.

Using a hexagon wrench to prevent the shock absorber piston rod from turning, remove the self-locking nut with ST.

 

When installing the coil spring compressor to the coil spring, follow the operation manual accompanied with the coil spring compressor during operation.

Preparation tool:

ST: STRUT MOUNT SOCKET (20399FG000)

 

<Example of coil spring compressor installation>

The installing position of coil spring compressor varies depending on the coil spring shape and winding number.

3.

Remove the shock mount rear from the shock absorber COMPL rear.

4.

Gradually decrease the compression force of compressor, and remove the coil spring.

5.

Remove the helper rear and the dust cover rear.

REAR SUSPENSION > Rear Shock Absorber　
ASSEMBLY
1.

Before assembly, check each part. REAR SUSPENSION>Rear Shock Absorber>INSPECTION

2.

Using a coil spring compressor, compress the coil spring rear.

 

When installing the coil spring compressor to the coil spring, follow the operation manual accompanied with the coil spring compressor during operation.

3.

Install by aligning with the edge surface of the coil spring rear and the stopper portion of the lower side spring seat.

(a)

Coil spring rear

(b)

0+10 mm (0+0.4in)

(c)

Spring seat stopper portion
4.

Install the helper rear and dust cover rear to the piston rod.

5.

Fully pull up the piston rod in the upward direction.

6.

Temporarily tighten the shock mount rear with new self-locking nuts.

 

Position the shock mount rear as shown in the figure.

A

LH side

B

RH side

(a)

Front side of vehicle

(b)

Vehicle outside

(c)

10°±5°

(d)

End portion of coil spring rear

(e)

Identification paint (Install with the paint facing the vehicle inside.)
7.

Using a hexagon wrench to prevent the piston rod of shock absorber COMPL rear from turning, tighten the new self-locking nut with ST.

Preparation tool:

ST: STRUT MOUNT SOCKET (20399FG000)

Tightening torque:

25 N·m (2.5kgf-m, 18.4ft-lb)

8.

Loosen the coil spring compressor while being careful that the coil spring rear and the spring seat seating surface are not misaligned.

REAR SUSPENSION > Rear Shock Absorber　
INSPECTION
1.

Check for oil leaks.

2.

Move the piston rod up and down to check that it operates smoothly without any hitch.

3.

Check the piston rod runout.

Preparation tool:

Dial gauge

Magnet stand

(1)

Fix the outer shell.

(2)

Extend the piston rod until it stops retracting, and set the dial gauge at the L position from the end of the piston rod.

Measuring point:

L = 10 mm (0.39in)

(3)

While applying a force of W1 [20 N (2 kgf, 4 lbf)] to the arrowed section, read the dial gauge indication P1.

(4)

While applying a force of W2 [20 N (2 kgf, 4 lbf)] from the opposite side of W1, read the dial gauge indication P2.

Play limit (P1 + P2):

0.8 mm (0.031in)

4.

Replace the shock absorber COMPL rear if a fault is found in the inspection or limit value is exceeded.

REAR SUSPENSION > Rear Shock Absorber　
DISPOSAL
 

  • Before handling the strut COMPL front and shock absorber, be sure to wear goggles to protect eyes from gas, oil and cutting powder.

  • Do not disassemble the strut COMPL front and the shock absorber or throw them into flames.

  • When discarding the strut COMPL front and the shock absorber filled with gas, drill a hole on them to purge the gas.

1.

Place the strut COMPL front and shock absorber on a level surface with the piston rod fully expanded.

2.

Make a hole of 30 mm (1.18in) deep into the specified position shown in the figure, using a drill with 2 — 3 mm (0.08 — 0.12in) diameter.

(a)

40 mm (1.57in)
REAR SUSPENSION > General Diagnostic Table　
INSPECTION
1. IMPROPER VEHICLE POSTURE OR IMPROPER SUSPENSION HEIGHT

Possible cause

Corrective action

(1) Permanent distortion or damaged coil spring

Replace.

(2) Rough operation of shock absorber COMPL rear

Replace.

(3) Installation of the wrong shock absorber COMPL rear

Replace with proper parts.

(4) Installation of the wrong coil spring

Replace with proper parts.
2. POOR RIDE COMFORT
1.

Large rebound shock

2.

Rocking of the vehicle continues too long after running over bump and hump.

3.

Excessive shock in bumping

Possible cause

Corrective action

(1) Damaged coil spring

Replace.

(2) Overinflation of tires

Adjust to the specified air pressure.

(3) Improper suspension height

Replace the coil springs with new parts.

(4) Defective operation of shock absorber COMPL rear

Replace.

(5) Damage or deformation of mount shock absorber rear

Replace.

(6) Unsuitable length (maximum or minimum) of shock absorber COMPL rear

Replace with appropriate parts.

(7) Deformation or loss of bushing

Replace.

(8) Deformation or damage of helper in shock absorber COMPL rear

Replace.

(9) Oil leakage from the shock absorber COMPL rear

Replace.
3. NOISE

Possible cause

Corrective action

(1) Wear or damage of shock absorber COMPL rear component parts

Replace.

(2) Loosening of the suspension link or arm installing bolt

Tighten to the specified torque.

(3) Deformation or loss of bushing

Replace.

(4) Unsuitable length (maximum or minimum) of shock absorber COMPL rear

Replace with appropriate parts.

(5) Damaged coil spring

Replace.

(6) Wear or damage of the ball joint

Replace.

(7) Deformation of clamp or bushing

Replace.