"Shimmy" in Front right wheel?

I agree with "alekat" it sure sounds like the caliper is hanging up and causing pads to wear prematurely and also rotor warping which causes the "shimmy", drive the car for 5min. or so and put your hand (touch) the center of the hub where the wheel bolts are if the right one is hotter it's your caliper, carefull not to burn your fingers, it can get very hot..

I have a suggestion, find a reputable shop that employs people capable of properly diagnosing the problem. Obviously, where you are taking your Taurus too is shell shocked here. The alignment is not okay even though he or she claims it to be, neither are the brakes. I'd have the alignment, inner and outer tie rods, control arm bushings etc checked. Did your so called "mechanic" give you a printout of before and after measurements for the alignment? If so what were the camber, caster and toe readings for the front and back? Need way more info.

Right front brake caliper piston, or slider, is hanging up and not releasing.

This can also cause the rotor to develop "hot spots" or warp from over heating - causing a wobble, when braking or not.

Do you notice a slight pull to the right on level roadway, (most roadway's slope slightly to the right for moisture drainage so it must be level)? If the tires are at correct pressure, alignment is correct, then suspect the caliper.

cv joint or wheel bearing maybe and brakes last about that long any ways and right side always wears faster that left side since roadways lean to right to drain water puts more pressure on right side of all cars way to check for shake put in drive but give no gas just let roll what you feel shake wil be bad wheel or tire now give gas what you feel wil be drive line like drive shaft cv joint as you speed up let off doe it stop shaking drive line problem .. if you reach a speed say above 45 does it come and go then its a tire balance problem

Go to another shop and get a front end inspection. It's not hard to see if a front end suspension component has play in it.. look for play in the wheel bearings, outer and inner tie rods, ball joints, stabilizer links etc...

Bad wheel bearing. If the shimmy happens at certain speeds and shimmies for say 10 seconds, and goes away and then comes back in 10 seconds, the most likely the wheel bearing is bad. You will also notice it problem constantly when you are braking. It's easy to check, jack up each front wheel and grab each outer edge of the tire with your hands and wiggle the tire back and forth. The tire should NOT wiggle, or only a very small amount. if it moves significantly and klunks when you wiggle it, the wheel bearing is bad and you should either R&R the rotor or the wheel bearing. Some wheel bearings are press fit into the rotor, so in those cases you might just want to replace the entire rotor...there is a good chance it will be warped anyway. Hope that helps!

Would prefer 4 wheel drive for the grip and stability - but have front wheel drive at the moment ;)

Here are some things you can check.

check to see if the lug bolts are tight.

check if there are deformities in the tire.

check to see if there is a collection of mud inside the wheel, it could cause a tire to shimmy?

If none of these help? get help.

hope this helps?

it could be a bad tire like the belt is broke, a bad ball joint or tie rod. it even could be a bad wheel bearing.

You either have something worn out or something bent (like from hitting a curb). You need a new mechanic.This should be something obvious!