warped rotors
Have the front rotors turned on a lathe at a dealership. check brakes and rotors
If a car is shaking when the brakes are being applied, it is likely that the front end is out of alignment. The tie rod ends or shocks could also need replacing. You may also find that the brake rotors are warped.
Brake rotors or drums need to be machined or replaced. If it causes steering wheel shaking, check front brakes. If happens when applying parking brake look to rear brake problem.
When the brake pads are worn the rivets will actually touch the brake rotor when the brakes are applied. The brakes should be changed immediately.
If it shakes only when the brakes are applied, its the brakes. Just because they are "good" and stop the truck well doesn't mean they are balanced and wont cause a vibration.
Brakes
Weight transfer. When a car brakes, its weight moves forward and causes the front brakes to do the majority of the work in stopping the car.
if you are driving and you go to stop, then that means that the front rotors are warped. if the front rotors are bad, you will feel a pulsation in pedal while applying brakes. change rotors on front.
You have something wrong with the drivers side front brake. It is not working that's why it pulls to the right. Could be a bad rubber brake line that's not letting fluid through when brakes are applyed. A sticking brake cailber can cause this also. Pull front wheel and check things out.
Braking
brake caliber
Probably scoured or warped rotors.