the brake rotars are out of round or warped.have them machined
Check the entire front end. Wheel bearings, ball joints and tie rod ends can all wear and call this problem.
Get you front end aligned, that should take care of the shakes.
What percent of braking are front wheels responsible
Shakes and shimmies? Try getting your tires balanced and your front end aligned. That might help.
Mine doesn't but in your case I would check: what speeds, only when braking, tire inflation, brake pads, front end alignment, etc.
You have warped rotors. They will need to be removed and trued or replaced. Causes of this are lug nuts overtightened, or heat from heavy braking at high speeds.
the brake rotors are warped. resurface or replace rotors. if the vehicle shakes without applying the brakes, check tire balance.
Dual diagonal braking is where the brakes are on two systems right front and left rear as well as left front and right rear. This is to give even braking in a partial system failure
If your expedition is a 4wd have the front CV joints checked. The 4WD models have auto 4WD that sometimes lock into position and don't unlock ~ even when you don't 4WD. This have very negative effects on the front wheels when turning (especially at lower speeds on 4WD high).
This is my question Turns out it was a badly worn right axle Vibrating while braking is a warped rotor.
The 2006 Ford Expedition has 63.0 in. of front hip room.
The 2003 Ford Expedition has 63 in. of front hip room.