65-75 mph brake shudder/shimmy issue

[floydturbo]

I have searched and read all the posts about this issue. I plan to solve this dilema and post the solution.

Issue: When driving about 65-75 mph on the freeway, the steering wheel shudders and vibrates when I apply the brakes.

Model: 2005 4.4 sport with stock 18" tires. I have 107k with new rotors and pads at 100k.

Attempted solutions:
1. Replaced tension strut lower bushings with BMW ones. This actually helped a bit, maybe 50% less brake vibration, but the issue is still there.
2. Rotated and balanced tires. No effect.
3. Checked all ball joints for any looseness, none.
4. Next, today I am ordering the upper rubber bushing for the wishbone. Although they appeared pretty tight, I did see cracks around the rubber.

I will respond back in a week or two with the results. Stay tuned.