[nysvx10]

The other day I went out to my 92 SVX to move it in my driveway so that I could wash it...once I started it it began to shake like it was going to fall apart. I decided not to move it. The next morning it started up and seemed to run fine. Now about a week later whenever I make a slow sharp turns like at intersection where the turn is around 90 degrees the steering becomes stiffer and the car begins to shake. The back deck and roof even seem to shake. This is very noticable, but especially while backing up. It feels like all of the wheels are going to come off while making a slow sharp turn. Any ideas of what might be causing this?