[junder]

As stated in the title I have a 2007 Solara Convertible. 154,000 miles on it. Original soft top still on car. I just redid the entire front end of the car with tie rod ends, ball joints, struts, control arms, and the rear of the car with struts. I decided to just do the valve covers and the spark plugs. In the same weekend I also did the timing belt, water pump and engine seals. The only issue I am trying to figure out is why the car can sometimes shutter when on rough roads or on a series of bumps. If anyone has any ideas on that please assist if you can, or is this just how convertible solara can be?