2006 Subaru Outback suspension problems

Tl* the contact owns a 2006 subaru outback. The contact stated that while driving approximately 55 MPH, a toxic odor emitted from outside the vehicle. The contact discovered that front passenger's side had caught on fire. The contact extinguished the fire and the vehicle was taken to the dealer. The technician diagnosed that the axle boot had failed. The vehicle had been repaired. The manufacturer was notified of the failure. The approximate failure mileage was 82,000.

I have a 2006 subaru outback limited wagon. Driving on wet roads, not even icy, the most minor bump in the road, or frost heave, will send the vehicle's rear end swaying, almost out of control. This is supposedly known as ghost walking. This is extremely dangerous, as it happens at highway speeds, on straight roads, and causes the vehicle to sway back and forth across the lane. Tires have been replaced as well as subaru dealership performing a full alignment.