Looks like the problem is not related to the suspension at all now...update has it, my friend was driving back home from work and the car started to have the same issues. This is after the axle being replaced recently, and the shocks/struts. Apparently the car started having the issue at 40mph, then 30mph, and then it felt according to my friend "like the car was going to sieze up...it was shaking and everything."

So if just about everything on the suspension was replced, I started to think about the engine. I gave it a rev from the engine bay and I heard a small knock coming from the engine itself, so now I'm thinking it's predetonating or misfiring, and that's causing the shakes...

Anyone have any thoughts? It's the weirdest thing I've heard of, and I can't figure it out for the life of me. Thanks

T-X