Subaru Outback (BR): Rear Drive Shaft, General Diagnostic Table
A: REMOVAL
1) Lift up the vehicle, and then remove the rear wheels.
2) Remove the axle nut.
CAUTION: Do not loosen the axle nut while the rear axle is loaded. Doing so may damage the hub bearing.
- Lift the crimped section of axle nut.
- Remove the axle nut using a socket wrench while depressing the brake pedal.
3) Drain differential gear oil.
4) Remove the trailing link.
- Remove the bracket, and remove the parking brake cable from the guide (a).
- Remove the bolts and nuts, and then remove the trailing link.
5) Remove the bolts and nuts and lower the rear lateral link.
- Remove the nut and disconnect the rear stabilizer link.
- Remove the shock absorber lower bolt.
- Disconnect the rear lateral link.
6) Remove the rear drive shaft from the rear differential.
- T-type
1. Fit the ST to the bolt (a) as shown in the figure.
CAUTION: Fit the ST to the bolts as shown in the figure to prevent damage of the side bearing retainer.
PREPARATION TOOL: ST: DRIVE SHAFT REMOVER (28099PA100)
2. Extract the rear drive shaft from the rear differential.
1. Fit the tire lever (b) to the bolt (a) as shown in the figure.
CAUTION: To prevent damage to the side bearing retainer, use by placing the tire lever against the bolt as shown in the figure.
Preparation tool: Tire lever
2. Extract the rear drive shaft from the rear differential.
7) Remove the rear drive shaft from the rear axle.
NOTE: If it is hard to remove, use the ST.
PREPARATION TOOL:
ST1: AXLE SHAFT PULLER (926470000)
ST2: AXLE SHAFT PULLER PLATE (28099PA110)
B: INSTALLATION
1) Replace the rear differential side oil seal. <Ref. to DI-78, REPLACEMENT, Rear Differential Side Oil Seal.>
NOTE: After pulling out the drive shaft, be sure to replace with a new oil seal.
2) Insert the drive shaft into the rear hub spline, and pull the drive shaft into specified position.
CAUTION:
- Be careful not to damage the magnetic encoder.
- Do not get closer the tool which charged magnetism to magnetic encoder.
- Do not hammer drive shaft when installing it.
- Magnetic encoder
- Rear hub unit bearing
3) Tighten the axle nut temporarily.
4) Using the ST, install the rear drive shaft to the rear differential.
PREPARATION TOOL: ST: OIL SEAL PROTECTOR (28099PA090)
5) Attach the links to the rear housing and tighten them to the specified torque.
Tightening torque:
Stabilizer link: 33 N*m (3.4 kgf-m, 24.3 ft-lb)
Shock absorber: 120 N*m (12.2 kgf-m, 88.5 ft-lb)
Rear lateral link: 80 N*m (8.2 kgf-m, 59 ft-lb)
Trailing link - rear sub frame: 120 N*m (12.2 kgf-m, 88.5 ft-lb)
Trailing link - rear housing: 80 N*m (8.2 kgf-m, 59 ft-lb)
6) While pressing the brake pedal, tighten the new axle nuts to the specified torque.
CAUTION: Do not load the rear axle before tightening the axle nut. Doing so may damage the hub bearing.
Tightening torque: 240 N*m (24.47 kgf-m, 177 ft-lb)
7) Lock the axle nut securely.
8) Fill differential gear oil.
9) Install the rear wheels.
Tightening torque: 120 N*m (12.24 kgf-m, 88.5 ft-lb)
10) Inspect the wheel alignment and adjust if necessary.
- Inspection: <Ref. to FS-9, INSPECTION, Wheel Alignment.>
- Adjustment: <Ref. to FS-14, ADJUSTMENT, Wheel Alignment.>
C: DISASSEMBLY
1) Take out the DOJ outer race from the shaft assembly.
CAUTION: Be careful not to damage the boot.
- Using a flat tip screwdriver or plier, loosen the boot band on the large end of DOJ boot.
CAUTION: Be careful not to damage the boot.
- Remove the boot band on the small end of DOJ boot in the same manner.
- Remove the large end of DOJ boot from DOJ outer race.
- Remove the round snap ring at the neck of DOJ outer race with a flat tip screwdriver.
- Take out the DOJ outer race from the shaft assembly.
- Wipe off the grease and take out the ball bearings.
CAUTION: The grease is a special grease (grease for constant velocity joints). Do not mix with other greases.
NOTE: Disassemble exercising care not to lose balls.
- Outer race
- Grease
2) Remove the cage from the inner race.
- Turn the cage by a half pitch to the track groove of inner race and shift the cage.
- Using pliers, remove the snap ring fixing the inner race to the shaft.
- Take out the DOJ inner race.
- Take off the DOJ cage from shaft and remove the DOJ boot.
CAUTION: Wrap shaft splines with vinyl tape to protect the boot from scratches.
3) Remove the BJ boot or EBJ boot in the same procedure as the DOJ boot.
NOTE: Further disassembly of the drive shaft is impossible because the BJ and EBJ cannot be disassembled.
D: ASSEMBLY
CAUTION: Wrap shaft splines with vinyl tape to protect the boot from scratches.
NOTE: Use specified grease.
BJ, EBJ side: NKG106
DOJ side: NKG205
1) Install the DOJ inner race to the shaft.
- Install the BJ or EBJ boot in specified position, and fill it with 50 to 60 g (1.76 to 2.12 oz.) of specified grease.
- Place the DOJ boot at the center of shaft.
- Insert the DOJ cage onto shaft.
- Cage
- Cutout portion
NOTE: Insert the cage with the cutout portion facing the shaft end, since the cage has an orientation.
- Install the DOJ inner race on shaft and fix the snap ring in place with pliers.
NOTE: Confirm that the snap ring is completely fitted in the shaft groove.
2) Install the cage to the inner race.
- Install the cage (B) with the protruding section aligned with the track on the inner race (A), and turn by a half pitch.
- Fill 80 to 90 g (2.82 to 3.17 oz) of specified grease into the inner side of the DOJ outer race.
- Apply a thin coat of specified grease to the cage pocket and ball.
- Insert the ball bearings into the cage pocket.
3) Connect the shaft assembly to the outer race.
- Align the outer race track and ball positions, and place the shaft, inner race, cage and ball bearings in the original positions, and then fix outer race in place.
- Outer race
- Grease
- Install the snap ring in the groove on the DOJ outer race.
CAUTION: Be careful of the following items during installation:
- Make sure that the balls, cage and inner race are completely fitted in the outer race of DOJ.
- Use care not to place the matched position of snap ring in the ball groove of outer race.
- Pull the shaft lightly and assure that the circlip is completely fitted in the groove.
- Apply an even coat of the specified grease [20 to 30 g (0.71 to 1.06 oz) ] to the entire inner surface of boot. Also apply grease to the shaft.
- Install the DOJ boot taking care not to twist it.
NOTE:
- The inside of the large end of DOJ boot and the boot groove shall be cleaned so as to be free from grease and other substances.
- When installing the DOJ boot, position the outer race of DOJ at center of the stroke.
- Put a new band through the clip and wind twice in the band groove of the boot.
- Pinch the end of band with pliers. Hold the clip and tighten securely.
NOTE: When tightening boot, use care so that the air within the boot is appropriate.
- Tighten the band using the ST.
PREPARATION TOOL: ST: BAND TIGHTENING TOOL (925091000)
NOTE: Tighten the band until it cannot be moved by hand.
- Tap the clip with the punch provided at the end of the ST.
PREPARATION TOOL: ST: BAND TIGHTENING TOOL (925091000)
NOTE: Tap to an extent that the boot underneath is not damaged.
- Cut off the band with an allowance of about 10 mm (0.39 in) left from the clip and bend this allowance over the clip.
CAUTION: Make sure that the end of the band is in close contact with clip.
4) Install the BJ boot or EBJ boot in the same procedure as a DOJ boot.
5) Extend and retract the DOJ repeatedly to provide an equal coating of grease.
E: INSPECTION
Check the removed parts for damage, wear, corrosion etc. Repair or replace if defective.
- DOJ (Double Offset Joint): Check for seizure, corrosion, damage, wear and excessive play.
- EBJ (high-efficiency compact ball fixed joint): Check for seizure, corrosion, damage, wear and excessive play.
- Shaft: Check for excessive bending, twisting, damage and wear.
- BJ (Bell Joint): Check for seizure, corrosion, damage and excessive play.
- Boot: Check for wear, warping, breakage and scratches.
- Grease: Check for discoloration and fluidity.
General Diagnostic Table
A: INSPECTION
NOTE: Vibration while cruising may be caused by an unbalanced tire, improper tire inflation pressure, improper wheel alignment, etc.
READ NEXT:
A: SPECIFICATION
B: COMPONENT
1. ABS WHEEL SPEED SENSOR
Front ABS wheel speed sensor
Front axle housing
Rear ABS wheel speed sensor
Rear axle housing
Hub unit bearing
A: REMOVAL
1) Disconnect the ground cable from battery.
2) Remove the air intake boot.
H4 model: <Ref. to IN(H4DOTC)-10, REMOVAL, Air Intake Boot.>
H6 model: <Ref. to IN(H6DO)-7, REMOVAL,
SEE MORE:
1) Power steering fluid reservoir (page 11-27)
2) Differential gear oil level gauge (page 11-26)
3) Automatic transmission fluid level gauge (page 11-24)
4) Brake fluid reservoir (page 11-28)
5) Fuse box (page 11-46)
6) Battery (page 11-45)
7) Windshield washer tank (page 11-40)
8) Engine o
A: INSPECTION
1. GENERAL PRECAUTION
Road tests should be conducted to properly diagnose the condition of automatic transmission.
NOTE: When performing the test, do not exceed posted speed limit.
2. D RANGE SHIFT FUNCTION
Check shifting between 1st ←→ 2nd ←→ 3rd ←→