2013 Persona Suspension Issues

Hello All,

I am having an issue with a swaying type motion with my car that I cannot figure out and neither can any of the mechanics. I bought it a couple years ago with 90,000 miles and now it has 115,500. It sits in the garage most of the time, as I usually drive my '05 Prius.

It was fine until earler this year, but then I started experiencing an uncomfortable ride.

Just a couple months ago, I put new OEM (from Toyota) struts and shocks on it. After taking it to now 7 different shops, nobody can figure out what the issue is. Most of them say nothing is wrong, but they're morons. The last shop replaced the ball joints last week and then today installed sway bar links on it. I drove it home and it is having the same issue. It feels very unsafe on the freeway and just doesn't handle smoothly. It is not bouncing, but when going over even the smallest dip or portion of the road that is uneven, it kind of wobbles back and forth as if I were moving the steering wheel back and forth. It is a difficult problem to describe, but it kind of feels like the unevenness of a city bus when it is turning a corner. I don't know if anyone is going to be able to help without driving it and it is probably a general mechanical issue rather than a Prius specific issue. Anyway, I just thought I would put this out there to see if anyone has experienced this or anyone has any suggestions.

Thank you for reading and thanks in advance for the help.

 

The tires on the '05 are 15: while the '13 has 17". I don't know if that would work, as I think it would sit too low.