So my beloved 850 is shaking around 105 kmh and up. basically in the steering wheel, sometimes more than others. I replaced the bushings and struts last fall and got a wheel alignment done, where they told me the front end was really tight and in good shape. I have switched to a bit wider tire, 205/60/15 instead of the 195/60/15.
As well the steering especially at low speeds is pretty stiff, like its rack n pinion, kind of wondering if my power steering pump is gone or perhaps the fuse is blown, im checking that today.
after the alignment there is still a slight pull to the right.

Any thoughts for the shaking and stiffness?
the car is mint body and engine, so im hoping to figure this out.
cheers

 

did the wheels get balanced properly?

 

The shaking is a tire, it's always a tire.

The low power steering, I don't know.