Wobble control of steering.

Issue: Overtime our Prius V has a wabble sensation when driving from 0 to 40 on a even road. Kind of feels like might be coming from front right. It rides better on uneven road or with little potholes as soon as it hits something it resets the vibration.

Car stats:
Year:2013
Model: Prius V Two
Mileage: 125000

Replaced parts as part of suspension:

• Front and Rear Wheel Hub Bearings Assembly
• Sway Bar End Link Front Stabilizer Bar Link
• Suspension Stabilizer Bar Bushing Kit

What steps taken to diagnose:

• all 4 wheel balanced
• Inner tie rod and outer test and nothing is moving as expected.
• Wheels rotated.

Symptoms:

• Wabble feeling on steering wheel when going from 0 to 40MPH.
• Wabble kind of shaking in a front right.
• Knocking but not loud sound from steering column on super uneven road.
• Slight squeaking sound when turning to a driveway (
  of when turning wheels while parked)
• look of when parked and turning steering wheel:

I am thinking to replace all 4 struts but I am thinking it could be also rack and pinion or both inner and outer tie rods.

Any help would be apricated.

 

How can you diagnose that ?