After doing this car feels amazing! no vibrations, no thrumming sound. A little rust and debris on the spacers and I re torqued my brake disks while I was there. There used to be a bit of a brake pulsation as well and that is gone too. Perhaps one of my rotors was not tightened down all the way and created all of the vibrations, thrumming, and pulsing I was experiencing. Car feels like a $1000000.

After 2 days of driving, I had a little vibration back at the steering wheel, I am wondering if my cheap aftermarket spacers came with bolts that are not holding their torque spec over time. Maybe some thread lock or higher quality bolts might do the trick.