Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Front Arm: Installation
- Before installation, inspect the following items and replace any faulty part with a new one.
- Check the arm COMPL front for damage or cracks, and replace if defective.
- Visually check the bushing for abnormal cracks, fatigue or damage.
- Visually check the boot on the ball joint for damage.
- Using new self-locking nuts and flange bolts, temporarily tighten the arm COMPL front to the Cross Member COMPL front.
- Using new self-locking nuts, temporarily tighten the bushing rear front arm connecting area of the arm COMPL front to the body side together with the front arm rear plate.
- Install the front arm rear plate using new flange bolts.
Tightening torque:
150 N.m (15.3 kgf-m, 110.6 ft-lb)
- Install the ball joint section to the front axle housing.CAUTION:
- Be careful not to damage the boot of the ball joint.
- Before tightening, make sure the bottom surface of front axle housing and stepped section of ball joint COMPL are in contact.
Tightening torque:
50 N.m (5.1 kgf-m, 36.9 ft-lb)
- Install the Cross Member support rear.
Tightening torque:
70 N.m (7.1 kgf-m, 51.6 ft-lb)
- Install the front wheels.
Tightening torque:
120 N.m (12.2 kgf-m, 88.5 ft-lb)
- Unload the vehicle from the lift, confirm that the wheels are in full contact with the ground and the vehicle is at curb weight, and tighten the bolt which secures the arm COMPL front to the Cross Member COMPL front, and the nut which secures the COMPL to the body side.
Tightening torque:
Refer to "COMPONENT" of "General Description" for the tightening torque. Ref. to FRONT SUSPENSION>General Description>COMPONENT>FRONT SUSPENSION .
- Inspect the wheel alignment and adjust if necessary.
- Inspection: Ref. to FRONT SUSPENSION>Wheel Alignment>INSPECTION .
- Adjustment: Ref. to FRONT SUSPENSION>Wheel Alignment>ADJUSTMENT .
- Perform the following adjustments using Subaru Select Monitor.
- Lane keep assist learning value clear (model with EyeSight): Ref. to EYESIGHT (DIAGNOSTICS)>CLEAR ACTIVE LANE KEEP SYSTEM LEARNING VALUE>OPERATION .
- VDC sensor midpoint setting mode: Ref. to VEHICLE DYNAMICS CONTROL (VDC)>VDC CONTROL MODULE AND HYDRAULIC CONTROL UNIT (VDCCM&H/U)>ADJUSTMENT .
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.